a baseball is thrown at 30ms^-1. the batter hits it and gives it a velcoity of 40ms^-1 in the opposite direction. if the ball and bat are in contact for 0.04 s, what is the average acceleration of the ball during this interval?

Answer 1

V = Vo + a*t
V = -40 m/s
Vo = 30 m/s
t = 0.04 s.
Solve for a(It is negative).