Question

A 0.25 kg ball moving at 19.0 m/s is hit by a bat. The ball leaves the bat at a speed of 38 m/s in the opposite direction. If the bat is in contact with the ball for 0.01 s, find the magnitude of the average force exerted on the ball by the bat.

Answers

Anonymous
force = change in momentum/ time
change in momentum = .25 (38 - -19) = .25 (57)
F = .25 (57) / 0.01 Newtons
Henry
V = Vo + a*t =-38.
19 + a*0.01 = -38.
a = ? It will be negative.

F = M*a.

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