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A ball rolls down a track, starting at a height of 5 m. The ball has a mass of .4 kg. At the bottom of

A ball rolls down a track, starting at a height of 5 m. The ball has a mass of .4 kg. At the bottom of the hill is a jump that raised the track up 3.5 m. How fast is the ball rolling when it leaves the track? Assume no energy due to friction.

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