Difference between revisions of "Giancoli Physics (5th ed) Chapter 4"
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| − | [[Giancoli Physics (5th ed) | + | [[Main Page]] > [[Giancoli Physics (5th ed) Solutions]] > Giancoli Physics (5th ed) Chapter 4<br /> |
==Problems== | ==Problems== | ||
===1. Question=== | ===1. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 69.0 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 9: | Line 9: | ||
===2. Question=== | ===2. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | m = 116 kg | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 15: | Line 15: | ||
===3. Question=== | ===3. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 8.8 x 10<sup>2</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 21: | Line 21: | ||
===4. Question=== | ===4. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 1.26 x 10<sup>3</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 27: | Line 27: | ||
===5. Question=== | ===5. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 6.5 x 10<sup>2</sup> N<br />1.1 x 10<sup>2</sup> N<br />2.4 x 10<sup>2</sup> N<br />0 | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 33: | Line 33: | ||
===6. Question=== | ===6. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 196 N<br />196 N<br />b. 294 N<br />98.0 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 39: | Line 39: | ||
===7. Question=== | ===7. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | -3.4 x 10<sup>3</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 45: | Line 45: | ||
===8. Question=== | ===8. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 153 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 51: | Line 51: | ||
===9. Question=== | ===9. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | m > 1.5 kg | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 57: | Line 57: | ||
===10. Question=== | ===10. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 1.29 x 10<sup>3</sup> N in the direction of the ball's motion | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 63: | Line 63: | ||
===11. Question=== | ===11. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 2.1 x 10<sup>2</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 69: | Line 69: | ||
===12. Question=== | ===12. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 1.3 x 10<sup>4</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 75: | Line 75: | ||
===13. Question=== | ===13. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a = -3.5 m/s<sub>2</sub> (down) | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 81: | Line 81: | ||
===14. Question=== | ===14. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 5.04 x 10<sup>4</sup> N<br />4.47 x 10<sup>4</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 87: | Line 87: | ||
===15. Question=== | ===15. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a (downward) ≥ 2.2 m/s<sup>2</sup> | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 93: | Line 93: | ||
===16. Question=== | ===16. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | -2.5 m/s<sup>2</sup> (down) | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 99: | Line 99: | ||
===17. Question=== | ===17. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a<sub>max</sub> = 0.557 m/s<sup>2</sup> | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 105: | Line 105: | ||
===18. Question=== | ===18. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. a = 3/4 g = 7.4 m/s<sup>3</sup> (down)<br />b. 1176 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 111: | Line 111: | ||
===19. Question=== | ===19. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. a = 2.2 m/s<sup>2</sup><br />b. 18 m/s<br />c. t = 93 s | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 117: | Line 117: | ||
===20. Question=== | ===20. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 3.2 x 10<sup>3</sup> N downward | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 123: | Line 123: | ||
===21. Question=== | ===21. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 9.4 m/s<br />b. F<sub>legs</sub> = 3.3 x 10<sup>3</sup> N up | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 129: | Line 129: | ||
===22. Question=== | ===22. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 1.5 x 10<sup>2</sup> N<br />b. v = 15.0 m/s | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 135: | Line 135: | ||
===23. Question=== | ===23. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 40 N<br />b. 10 N<br />c, 0 | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 141: | Line 141: | ||
===24. Question=== | ===24. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | southwesterly direction | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 159: | Line 159: | ||
===27. Question=== | ===27. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. F<sub>a</sub> 19.0 N<br />57.5° below - x-axis<br />0.702 m/s/s, 57.5° below - x-axis<br />b. F<sub>b</sub> = 14.0 N<br />51.0° above + x-axis<br />0.519 m/s/s, 51.0° above + x-axis | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 165: | Line 165: | ||
===28. Question=== | ===28. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 62.2 N<br />c. 204 N<br />d. 100 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 171: | Line 171: | ||
===29. Question=== | ===29. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 11 m/s/s<br />b. 4.3 m/s | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 177: | Line 177: | ||
===30. Question=== | ===30. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 29 N<br />58 N<br />34 N<br />68 N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 183: | Line 183: | ||
===31. Question=== | ===31. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 8.0 x 10<sup>4</sup> N<br />b. 1.25 x 10<sup>4</sup> N | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 189: | Line 189: | ||
===32. Question=== | ===32. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | a. 3.2 x 10<sup>2</sup> N<br />b. 0.98 m/s/s | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 201: | Line 201: | ||
===34. Question=== | ===34. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 22° | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 207: | Line 207: | ||
===35. Question=== | ===35. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | b. a = F/(m<sub>1</sub>+m<sub>2</sub>+m<sub>3</sub>)<br />c. F<sub>net1</sub> =m<sub>1</sub>a = m<sub>1</sub>F/(m<sub>1</sub>+m<sub>2</sub>+m<sub>3</sub>);<br />F<sub>net2</sub> =m<sub>2</sub>a = m<sub>2</sub>F/(m<sub>1</sub>+m<sub>2</sub>+m<sub>3</sub>);<br />F<sub>net3</sub> =m<sub>3</sub>a = m<sub>3</sub>F/(m<sub>1</sub>+m<sub>2</sub>+m<sub>3</sub>);<br /> d. F(m<sub>2</sub> + m<sub>3</sub>)/(m<sub>1</sub> + | |
| + | m<sub>2</sub> + m<sub>3</sub> <br /> Fm<sub>3</sub>/(m<sub>1</sub> + m<sub>2</sub> = m<sub>3</sub><br />e. 2.67 m/s<br />F<sub>net1</sub> = F<sub>net2</sub> = F<sub>net3</sub> = 32 N<br />64 N<br />32N | ||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 213: | Line 214: | ||
===36. Question=== | ===36. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | h = 3.93 m | |
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 219: | Line 220: | ||
===37. Question=== | ===37. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | 1.74 m/s/s<br /> | |
| + | |||
| + | F<sub>T1</sub> = 22.6 N<br /> | ||
| + | |||
| + | 20.9 N | ||
| + | |||
| + | <br /> | ||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 225: | Line 232: | ||
===38. Question=== | ===38. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 1.0E2 N | ||
| + | |||
| + | <br />no force | ||
| + | |||
| + | <br /> | ||
| + | |||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 231: | Line 245: | ||
===39. Question=== | ===39. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (a) 0.82<br />(b) 0.74 | ||
| + | |||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 243: | Line 260: | ||
===41. Question=== | ===41. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 0.41 | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 249: | Line 268: | ||
===42. Question=== | ===42. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 2.3 | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 255: | Line 276: | ||
===43. Question=== | ===43. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | m<sub>1</sub> = 6.7 kg | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 261: | Line 284: | ||
===44. Question=== | ===44. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 4.1 m | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 267: | Line 292: | ||
===45. Question=== | ===45. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (a) 2.5 m/s/s<br />(b) 4.4 x 10<sup>2</sup> | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 273: | Line 300: | ||
===46. Question=== | ===46. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (b) 47 m<br /> | ||
| + | (c) 2.8 x 10<sup>2</sup> m | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 279: | Line 309: | ||
===47. Question=== | ===47. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | -7.4 m/s<sup>2</sup> | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 285: | Line 317: | ||
===48. Question=== | ===48. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | Bonnie's | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 291: | Line 325: | ||
===49. Question=== | ===49. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | U<sub>k</sub> = 0.40 | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 297: | Line 333: | ||
===50. Question=== | ===50. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 0.32 | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 303: | Line 341: | ||
===51. Question=== | ===51. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | t = 1.8s<br />no change | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 309: | Line 349: | ||
===52. Question=== | ===52. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (a) 3.67 m/s<sup>2</sup><br /> | ||
| + | (b) 8.17 m/s | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 315: | Line 358: | ||
===53. Question=== | ===53. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (a) 1.2 m up the plane<br /> | ||
| + | (b) t - 1.6 s | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 321: | Line 367: | ||
===54. Question=== | ===54. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | (a) 1.85 m/s<sup>2</sup> 5.81 m/s<br /> | ||
| + | (b) 0.82 m up the plane 1.49 s | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 327: | Line 376: | ||
===55. Question=== | ===55. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 23m/s (85km/h) | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
| Line 333: | Line 384: | ||
===56. Question=== | ===56. Question=== | ||
<blockquote> | <blockquote> | ||
| − | + | ||
| + | 101 N. U<sub>k</sub> = 0.719 | ||
| + | |||
</blockquote> | </blockquote> | ||
[[#top | Table of Contents]] | [[#top | Table of Contents]] | ||
Latest revision as of 12:35, 2 March 2009
Main Page > Giancoli Physics (5th ed) Solutions > Giancoli Physics (5th ed) Chapter 4
Contents
- 1 Problems
- 1.1 1. Question
- 1.2 2. Question
- 1.3 3. Question
- 1.4 4. Question
- 1.5 5. Question
- 1.6 6. Question
- 1.7 7. Question
- 1.8 8. Question
- 1.9 9. Question
- 1.10 10. Question
- 1.11 11. Question
- 1.12 12. Question
- 1.13 13. Question
- 1.14 14. Question
- 1.15 15. Question
- 1.16 16. Question
- 1.17 17. Question
- 1.18 18. Question
- 1.19 19. Question
- 1.20 20. Question
- 1.21 21. Question
- 1.22 22. Question
- 1.23 23. Question
- 1.24 24. Question
- 1.25 25. Question
- 1.26 26. Question
- 1.27 27. Question
- 1.28 28. Question
- 1.29 29. Question
- 1.30 30. Question
- 1.31 31. Question
- 1.32 32. Question
- 1.33 33. Question
- 1.34 34. Question
- 1.35 35. Question
- 1.36 36. Question
- 1.37 37. Question
- 1.38 38. Question
- 1.39 39. Question
- 1.40 40. Question
- 1.41 41. Question
- 1.42 42. Question
- 1.43 43. Question
- 1.44 44. Question
- 1.45 45. Question
- 1.46 46. Question
- 1.47 47. Question
- 1.48 48. Question
- 1.49 49. Question
- 1.50 50. Question
- 1.51 51. Question
- 1.52 52. Question
- 1.53 53. Question
- 1.54 54. Question
- 1.55 55. Question
- 1.56 56. Question
- 1.57 57. Question
- 1.58 58. Question
- 1.59 59. Question
- 1.60 60. Question
- 1.61 61. Question
- 1.62 62. Question
- 1.63 63. Question
- 1.64 64. Question
- 1.65 65. Question
- 1.66 66. Question
- 1.67 67. Question
- 1.68 68. Question
- 1.69 69. Question
- 1.70 70. Question
- 1.71 71. Question
- 1.72 72. Question
- 1.73 73. Question
- 1.74 74. Question
- 1.75 75. Question
- 1.76 76. Question
- 1.77 77. Question
- 1.78 78. Question
- 1.79 79. Question
- 1.80 80. Question
- 1.81 81. Question
- 1.82 82. Question
- 1.83 83. Question
- 1.84 84. Question
- 1.85 85. Question
- 1.86 86. Question
- 1.87 87. Question
- 1.88 88. Question
- 1.89 89. Question
- 1.90 90. Question
- 1.91 91. Question
- 1.92 92. Question
- 1.93 93. Question
- 1.94 94. Question
- 1.95 95. Question
- 1.96 96. Question
- 1.97 97. Question
- 1.98 98. Question
- 1.99 99. Question
- 1.100 100. Question
Problems
1. Question
69.0 N
2. Question
m = 116 kg
3. Question
8.8 x 102 N
4. Question
1.26 x 103 N
5. Question
6.5 x 102 N
1.1 x 102 N
2.4 x 102 N
0
6. Question
a. 196 N
196 N
b. 294 N
98.0 N
7. Question
-3.4 x 103 N
8. Question
153 N
9. Question
m > 1.5 kg
10. Question
1.29 x 103 N in the direction of the ball's motion
11. Question
2.1 x 102 N
12. Question
1.3 x 104 N
13. Question
a = -3.5 m/s2 (down)
14. Question
5.04 x 104 N
4.47 x 104 N
15. Question
a (downward) ≥ 2.2 m/s2
16. Question
-2.5 m/s2 (down)
17. Question
amax = 0.557 m/s2
18. Question
a. a = 3/4 g = 7.4 m/s3 (down)
b. 1176 N
19. Question
a. a = 2.2 m/s2
b. 18 m/s
c. t = 93 s
20. Question
3.2 x 103 N downward
21. Question
a. 9.4 m/s
b. Flegs = 3.3 x 103 N up
22. Question
a. 1.5 x 102 N
b. v = 15.0 m/s
23. Question
a. 40 N
b. 10 N
c, 0
24. Question
southwesterly direction
25. Question
Solution goes here
26. Question
Solution goes here
27. Question
a. Fa 19.0 N
57.5° below - x-axis
0.702 m/s/s, 57.5° below - x-axis
b. Fb = 14.0 N
51.0° above + x-axis
0.519 m/s/s, 51.0° above + x-axis
28. Question
a. 62.2 N
c. 204 N
d. 100 N
29. Question
a. 11 m/s/s
b. 4.3 m/s
30. Question
a. 29 N
58 N
34 N
68 N
31. Question
a. 8.0 x 104 N
b. 1.25 x 104 N
32. Question
a. 3.2 x 102 N
b. 0.98 m/s/s
33. Question
Solution goes here
34. Question
22°
35. Question
b. a = F/(m1+m2+m3)
c. Fnet1 =m1a = m1F/(m1+m2+m3);
Fnet2 =m2a = m2F/(m1+m2+m3);
Fnet3 =m3a = m3F/(m1+m2+m3);
d. F(m2 + m3)/(m1 + m2 + m3
Fm3/(m1 + m2 = m3
e. 2.67 m/s
Fnet1 = Fnet2 = Fnet3 = 32 N
64 N
32N
36. Question
h = 3.93 m
37. Question
1.74 m/s/s
FT1 = 22.6 N
20.9 N
38. Question
1.0E2 N
no force
39. Question
(a) 0.82
(b) 0.74
40. Question
Solution goes here
41. Question
0.41
42. Question
2.3
43. Question
m1 = 6.7 kg
44. Question
4.1 m
45. Question
(a) 2.5 m/s/s
(b) 4.4 x 102
46. Question
(b) 47 m
(c) 2.8 x 102 m
47. Question
-7.4 m/s2
48. Question
Bonnie's
49. Question
Uk = 0.40
50. Question
0.32
51. Question
t = 1.8s
no change
52. Question
(a) 3.67 m/s2
(b) 8.17 m/s
53. Question
(a) 1.2 m up the plane
(b) t - 1.6 s
54. Question
(a) 1.85 m/s2 5.81 m/s
(b) 0.82 m up the plane 1.49 s
55. Question
23m/s (85km/h)
56. Question
101 N. Uk = 0.719
57. Question
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100. Question
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