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April 18, 2014

Homework Help: physics

Posted by Anonymous on Monday, October 22, 2007 at 4:11am.

A ping pong ball (m= 6g) bounces off a table. Before striking the table the ball has a velocity of 4m/s in a direction pheta below the x-axis. It leaves the table with the same speed moving in a direction pheta above the x axis. What impulse does the table exert on the tennis ball. If the ball is in contact with the table for .o1 seconds what average force does the table exert on the ball?

I know I=p1-p2, but i dont understand how to deal with finding the angles

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