Projectile motion worksheet with answers

Free printable Projectile motion worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy
h = 25 mv0​ = ?x = 10 m

A stone is thrown horizontally from the top of a 25 m high wall and lands 10 m from the foot of the wall. Ignore air resistance and use g = 9.81 m/s². Find the launch speed v0.

h = 25 mx = 10 mg = 9.81 m/s²
v0 = m/s
2.Easy
h = 70 mv0​ = 8 m/srange

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.

v0 = 8 m/sθ = 0°h = 70 mg = 9.81 m/s²
t = s
3.Medium
v0​ = 20 m/s25°range

A ball is launched at 25° above horizontal from level ground. Ignore air resistance. Find the time of flight t until the ball hits the ground.

v0 = 20 m/sθ = 25°g = 9.81 m/s²
t = s
4.Medium
v0​ = 14 m/s70°range

A ball is launched at 70° above horizontal from level ground. Ignore air resistance. Find the time of flight t until the ball hits the ground.

v0 = 14 m/sθ = 70°g = 9.81 m/s²
t = s
5.Hard
h = 15 mv0​ = 11 m/s15°x = ?

A ball is launched at 15° above horizontal from the top of a 15 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.

v0 = 11 m/sθ = 15°h = 15 mg = 9.81 m/s²
x = m
6.Hard
h = 30 mv0​ = 28 m/s35°x = ?

A ball is launched at 35° above horizontal from the top of a 30 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.

v0 = 28 m/sθ = 35°h = 30 mg = 9.81 m/s²
x = m

Answer key

  1. 1. v0 = 4.429 m/s
  2. 2. t = 3.778 s
  3. 3. t = 1.723 s
  4. 4. t = 2.682 s
  5. 5. x = 21.92 m
  6. 6. x = 105.6 m

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