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April 24, 2014

April 24, 2014

Posted by **!!!!** on Wednesday, October 19, 2011 at 8:28pm.

what equation do i use to set this up? i have been trying for an hour and keep getting it wrong

- physics -
**Belinda B.**, Sunday, October 30, 2011 at 9:31pmI had trouble at first with this, too. Okay, so the moment that the ball is actually touching the floor, its velocity is zero, right? Then its velocity goes back to 5.5. Ignore the angle thing--it isn't important here.

Now use the Impulse equation I= change in momentum= m(final velocity-initial velocity).

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