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## Homework Statement

A(n) 0.182 kg baseball is thrown with a speed of 15.3 m/s. It is hit straight back at the

pitcher with a final speed of 10.4 m/s. What is the magnitude of the impulse delivered to the ball?

## Homework Equations

impulse=mass*change of velocity

## The Attempt at a Solution

.182*-4.9(change in velocity)=-.8918 answer is wrong is it the sign