A ball with an initial velocity of 6.11 m/s rolls up a hill without slipping. (a)...

 

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A ball with an initial velocity of 6.11 m/s rolls up a hill without slipping. (a) Treating the ball as a spherical shell, calculate the vertical height (in m) it reaches. m (b) Repeat the calculation (in m) for the same ball if it slides up the hill without rolling. A playground merry go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.600 rev/s. What is its angular velocity (in rev/s) after a 22.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest. rev/s A ball with an initial velocity of 6.11 m/s rolls up a hill without slipping. (a) Treating the ball as a spherical shell, calculate the vertical height (in m) it reaches. m (b) Repeat the calculation (in m) for the same ball if it slides up the hill without rolling. A playground merry go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.600 rev/s. What is its angular velocity (in rev/s) after a 22.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest. rev/s