If the pitched ball was traveling 77 mph before stanton s bat hit it and 120 mph

here we will use the concept of Newton's III law

as per Newton's III law the impulse given to the ball is same as the impulse lost by the bat

So here we will say

impulse gain by the ball = impulse lost by the bat

given that

For ball the change in speed will be

now from above equation

so speed of bat will decrease by 6.72 mph

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