A ball is thrown horizontally at 13 m/s from the top of a 75 m cliff. Ignore air resistance and use g = 9.81 m/s². Find the speed v with which it hits the ground.
Projectile motion worksheet with answers
A ball is launched horizontally from the top of a 40 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.
A ball is launched from level ground at 32 m/s and must land 55 m away. Ignore air resistance and use g = 9.81 m/s². Find the smaller of the two possible launch angles θ.
A ball is launched from level ground at 65° above the horizontal and lands 60 m away. Ignore air resistance and use g = 9.81 m/s². Find the launch speed v0.
A ball is thrown from ground level at 15 m/s and 50° above the horizontal. It lands on the flat roof of a building 2 m high, on its way down. Ignore air resistance and use g = 9.81 m/s². Find the horizontal distance x from the launch point to where it lands.
A ball is launched at 55° above horizontal from the top of a 25 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.
Answer key
- 1. v = 40.5 m/s
- 2. x = 65.68 m
- 3. θ = 15.9 °
- 4. v0 = 27.72 m/s
- 5. x = 20.76 m
- 6. x = 59.91 m
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