A ball is launched horizontally from the top of an 80 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.
Projectile motion worksheet with answers
A stone is thrown horizontally from the top of a 75 m high wall and lands 47 m from the foot of the wall. Ignore air resistance and use g = 9.81 m/s². Find the launch speed v0.
A ball is launched at 70° above horizontal from level ground. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.
A ball is launched at 40° above horizontal from level ground. Ignore air resistance. Find the time of flight t until the ball hits the ground.
A ball is launched at 35 m/s and 65° above the horizontal from the top of a 15 m cliff. Ignore air resistance and use g = 9.81 m/s². Find the greatest height H above the ground at the foot of the cliff.
A ball is launched at 16 m/s and 20° above the horizontal from the top of a 35 m cliff. Ignore air resistance and use g = 9.81 m/s². At what angle α below the horizontal does it hit the ground?
Answer key
- 1. x = 40.39 m
- 2. v0 = 12.02 m/s
- 3. x = 16.77 m
- 4. t = 4.456 s
- 5. H = 66.28 m
- 6. α = 60.68 °
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