Posted by **zacurea** on Tuesday, October 11, 2011 at 12:26pm.

The cart starts from rest at the top of a hill with height, H1. It rolls down the hill and at the bottom of the hill it has a speed of 8 m/s. Next it is at the top of same hill but pushed so that it starts at the top of the hill with a speed of 6 m/s. How fast is it going at the bottom of the hill?

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