Posted by katie on Friday, June 1, 2012 at 7:39pm.
A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s .
Part a: If the contact time between bat and ball is 4.25×10^−3 , calculate the magnitude of the force (assumed to be constant) between the ball and bat.
part b)Determine the direction of the force exerted on a ball.
a)the force is directed towards the pitcher
b) the force is directed away from the pitcher.

physics please respond !  Elena, Saturday, June 2, 2012 at 12:00pm
a)
m•Δv =F•Δt,
F = m•Δv/ Δt =
=0.13•(50.535.5)/4.25•10^3 = …