Problem 1: A ball is thrown from atop a cliff with an initial speed of 30 m/s at an angle of 40o above the horizontal. The cliff is 40 m above level ground. Neglect the effects of air resistance.
A) How long is the ball in the air?
B) Where does the ball strike the level ground?
C) What is the speed and direction of the ball's velocity vector just before it strikes the ground
Problem 2: (a) What are the period and speed of the motion of a person on a carousel if the person has an acceleration magnitude of 0.80 m/s2 when she is standing 4.0 m from the axis? (b) What are her acceleration magnitude and speed if she then moves in to a distance of 2.0 m from the carousel center and the carousel keeps rotating with the same period?