Difference between revisions of "Skill Set 07.2"

Latest revision as of 09:53, 13 February 2009

Main Page > IB Physics Skill Sets > Skill Set 07.2

1.1. A bullet going 481 m/s embeds in a stationary block of wood. The bullet and block combo are going 5.27 m/s after the collision, and the combo has a mass of 12.1 kg (Bullet and block). What was the mass of the bullet? (0.133 kg)

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2. 2. A 65 kg person dives 3.68 m/s to the right off of a 23 kg cart. What is the velocity of the cart if the cart and person were initially at rest? (10. m/s to the left)

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3. 3. 68 kg-Francois running 7.8 m/s jumps on a 45.3 kg cart already rolling at 2.3 m/s in the same direction. What speed are they going after he jumps on? (5.6 m/s)

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4. 4. A 1240 kg Toyota Camry going 12.0 m/s to the east, strikes a 2530 kg SUV going west at 16.3 m/s. What is the velocity of the wreckage after the collision? (6.99 m/s to the west)

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5. 5. A 65 kg person is riding a 23 kg cart to the right at 3.15 m/s. What speed must he dive off the cart, and in what direction, to give the cart a velocity of 22.3 m/s to the right? (3.6 m/s to the left)

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