**Projectile Motion Problems – Practice**

**Questions:**

1) A ball is kicked with an initial velocity of 12m/s at angle of 50° to the horizontal.

a) How long will the ball stay in the air (assume it strikes the ground at the same height it was launched)

b) How far will the ball go before hitting the ground?

c) What will be the maximum height of the ball?

2) A stone is thrown with an initial velocity of 15m/s at angle of 10° to the horizontal

a) How long will the stone stay in the air (assume it strikes the ground at the same height it was launched)

b) How far will the stone go before hitting the ground?

c) What will be the maximum height of the stone?

3) A golf ball is hit at a cliff 150m away with an initial velocity of 70m/s at angle of 40° to the horizontal.

a) How long will it take for the ball to hit the cliff?

b) At what height did the ball strike the cliff?

4) A cannon is fired horizontally from the top of a 30m cliff into the ocean. The initial velocity of the cannon was 1000m/s. How far from the cliff does the cannon ball hit the water?

**Quick Answers:**

1a) 1.88 sec b) 14.50 m c) 4.31 m

2a) 0.53 sec b) 7.83 m c) 0.35 m

3a) 2.80 sec b) 87.57 m

4) 2470 m

**Worked Answers:**