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 = 15 mv0​ = 10 m/sx = ?

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

v0 = 10 m/sθ = 0°h = 15 mg = 9.81 m/s²
x = m
2.Easy
h = 45 mv0​ = 13 m/sx = ?

A ball is launched horizontally from the top of a 45 m cliff. Ignore air resistance. Find the horizontal distance x travelled before the ball hits the ground.

v0 = 13 m/sθ = 0°h = 45 mg = 9.81 m/s²
x = m
3.Medium
v0​ = 32 m/sθ = ?R = 55 m

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.

v₀ = 32 m/sR = 55 mg = 9.81 m/s²
θ = °
4.Medium
v0​ = ?30°R = 130 m

A ball is launched from level ground at 30° above the horizontal and lands 130 m away. Ignore air resistance and use g = 9.81 m/s². Find the launch speed v0.

θ = 30°R = 130 mg = 9.81 m/s²
v0 = m/s
5.Hard
21 mv0​ = 35 m/s65°x = ?

A ball is thrown from ground level at 35 m/s and 65° above the horizontal. It lands on the flat roof of a building 21 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.

v₀ = 35 m/sθ = 65°hroof = 21 mg = 9.81 m/s²
x = m
6.Hard
h = 20 mv0​ = 12 m/s15°α = ?

A ball is launched at 12 m/s and 15° above the horizontal from the top of a 20 m cliff. Ignore air resistance and use g = 9.81 m/s². At what angle α below the horizontal does it hit the ground?

v₀ = 12 m/sθ = 15°h = 20 mg = 9.81 m/s²
α = °

Answer key

  1. 1. x = 17.49 m
  2. 2. x = 39.38 m
  3. 3. θ = 15.9 °
  4. 4. v0 = 38.37 m/s
  5. 5. x = 84.58 m
  6. 6. α = 59.97 °

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