1. A rock is thrown horizontally from the top of a cliff 80m high, with a horizontal speed of 20 m/s.

a. For what interval of time is the rock in the air?
b. How far from the base of the cliff does the rock land?

2. A golf ball was struck from the first tee at lunar Golf and Country Club. It was given a velocity of 30 m/s at an angle of 40° to the horizontal. On the moon the acceleration due to gravity is 1.6 m/s²

a. What are the vertical and horizontal components of the ball's initial velocity?

3. What average braking force is
necessary to stop a 1200 kg motorbike traveling with an initial velocity of 12 m/s for 25 seconds


nonsense answer = report​