# Projectile Motion Problems

A stone is thrown off the top of a building from a height of 40.0 m. The stone has a launch of angle of 30 degrees and an initial velocity of 200 m/s.

How long is the stone in flight?

How far from the base of the building does it travel?

At what velocity, and at what angle, does the stone impact the ground?

## Related Problems

A ball is thrown off a building. If the ball is thrown up at 5 m/s and lands 3 seconds later

Find the height of the building

Find the impact velocity of the ball

A key falls from a bridge that is 45 m above the water. It falls directly onto a model boat moving with constant velocity that is 12 m in front of the point of impact when the key is released. What is the speed of the boat?

A bullet was shot perfectly horizontally and was aimed directly at the center of a bulls eye 50 meters away. Suppose it struck 5 cm below the target. How fast was it going when it is fired?

An artillery shell is fired with an initial velocity of 110 m/s at an angle of 30∘above the horizontal. Find:

Its position and velocity after 6 s

The time required to reach its maximum height

The horizontal distance (range)