Posted by **Dominica** on Monday, March 7, 2011 at 4:52pm.

0.50 kg cream pie strikes a circus clown in the face at a speed of 5.00 m/s and stops. What is the change in kinetic energy of the pie?

in joules

- physics -
**Damon**, Monday, March 7, 2011 at 5:06pm
(1/2) m v^2

- physics -
**Dominica**, Monday, March 7, 2011 at 6:08pm
thts the formula for how to find kinetic energy not how to calculate the change in kin. energy. what is the formula for change?

- physics -
**Damon**, Monday, March 7, 2011 at 9:46pm
It stopped, therefore the final Ke is zero so the change is -(1/2)mv^2

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