A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling hor

Question

A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 45.0m/s , and it leaves the bat traveling to the left at an angle of 35? above horizontal with a speed of 55.0m/s . The ball and bat are in contact for 1.85ms .

Part A

Find the horizontal component of the average force on the ball. Take the x-direction to be positive to the right

Express your answer using two significant figures.

Fx=

Part B

Find the vertical component of the average force on the ball.

Express your answer using two significant figures.

Fy=

Explanation / Answer

A . impulse = change in momentum = 0.145 ( - 55cos35 - 45 ) = - 13.06

impulse = F.t

Fx = -13.06 / 1.85x`10-3 = - 7058.24 N

B. impulse = change in momentum = 0.145 ( 55sin35 - 0 ) = 4.57

impulse = F.t

Fy = 4.57 / 1.85x`10-3 = 2472.58 N

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