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Posted by on Friday, March 25, 2011 at 6:37pm.

A solid ball and a hollow ball, each with a mass of 6 kg and radius of 0.1 m, start from rest and roll down a ramp of length 3 m at an incline of 31°. An ice cube of the same mass slides without friction down the same ramp.


What is the speed of the ice cube at the bottom of the incline?

  • physics - , Friday, March 25, 2011 at 6:52pm

    (1/2) m v^2 = m g h = m g *3 sin 31

    v = sqrt (2 g *3 sin 31)

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