Calculate the velocity of top of the 12m tall hill, Physics

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A sled and its rider, with a total mass of 95 kg, are perched on top of a 25-m-tall hill. A second hill is 12 m tall (see the diagram below).

The rider is given an initial push giving 3674 J of kinetic energy.

Neglecting friction, what is the velocity at the top of the top of the 12-m-tall hill?

 

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