# Difference between revisions of "Projectile Motion Worksheet"

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### 1. 1. Rachel jumps off the edge of a cliff and hits the water 1.2 seconds later, about 5.4 m from the base of the cliff. a) What height was the cliff? b) With what speed did she leave the edge? c) What were her components of velocity upon striking the water? d) What was her velocity of impact? e) what was her velocity exactly 0.80 seconds after leaving the cliff edge? (Express as an angle and magnitude) f) what was her displacement exactly 0.80 s after leaving the cliff edge in terms of components? (how far out, how far down)

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### 2. Kyle wants to jump into the water from a cliff that is 21.0 m tall. There are rocks that stick out 9.50 m from the base of the cliff. a) What time will he be in the air? b) What must his horizontal speed be in order to clear the rocks? c) What is his velocity of impact? What is his velocity in d) vector components and e) angle-magnitude when he is 6.00 m above the water? (Hint – you need to use how far down from the cliff edge he is…)

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### 3. A golf ball leaves the ground at a speed of 45.0 m/s at an angle of 23.0o above the horizontal. a) What are the initial components of velocity in terms of x and y? b) What time is the ball in the air? c) How far does the ball go before striking the ground?

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