A 1-kg ball in the air has an initial velocity vo = [ 20 ] i + [ -30 ] j m/s. It falls for a total time of 1 s. Assume that positive x-values are to the right and positive y-values are upward.

A)What is the impulse or change in momentum Delta p of the ball?

B)What is the final momentum pf of the ball?

C)What is the initial kinetic energy Ki of the ball?

D)What is the final kinetic energy Kf of the ball?

E)What is the change in kinetic energy DeltaK of the ball?

F)What is the ball's change in height delta y after it falls 1 s?