A ball is launched horizontally from the top of a 70 m cliff. Ignore air resistance. Find the time of flight t until the ball hits the ground.
Projectile motion worksheet with answers
A ball is thrown horizontally at 8 m/s from the top of a 50 m cliff. Ignore air resistance and use g = 9.81 m/s². Find the speed v with which it hits the ground.
A ball is launched from level ground at 32 m/s and must land 50 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 at 60° above horizontal from level ground. Ignore air resistance. Find the maximum height H the ball reaches.
A ball is thrown from ground level at 34 m/s and 60° above the horizontal. It lands on the flat roof of a building 17 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 60° above horizontal from the top of a 5 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.
Answer key
- 1. t = 3.778 s
- 2. v = 32.33 m/s
- 3. θ = 14.31 °
- 4. H = 55.2 m
- 5. x = 91.05 m
- 6. x = 31.25 m
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