Posted by **Vinitha** on Monday, June 11, 2012 at 4:06am.

The kinectic energy E, of a toy car is directly proportional to the square of its velocity v. The difference in the kinectic energy of the toy car when it is travelling at 15cm/s and 20cm/s in 10 J. Find the kinectic energy of the toy car when it is travelling at 12cm/s thanks :)

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