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**1. Homework Statement**

A tennis ball with a mass of 110g is traveling 18.5 m/s east. It is struck by a racquet that applies a force of 950 N west. The ball and the racquet are in contact for 3.2ms. The change in momentum of the tennis ball is..

**2. Homework Equations**

As far as I can tell p=mv and p=w/t are relevant to the equation

**3. The Attempt at a Solution**

At first I tried to find the sum of the momentum before and subtract it by the sum of the momentum after, but that didn't seem to work. So I'm not really sure. Momentum has been my worst unit all year.

Any help would be appreciated. Thanks