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65A. A hockey puck is given an initial speed of 4.1 m/s. If the coefficient of...

65A. A hockey puck is given an initial speed of 4.1 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.05, how far does the puck slide before coming to rest? Solve this problem using conservation of energy. Express your answer with the appropriate units.

65B. Consider a particle of mass mm = 18.0 kg revolving around an axis with angular speed ω r = 0.500 m .

Assume ω = 29.0 rad/s-What is the magnitude v of the velocity of the particle in m/s?

Now that you have found the velocity of the particle, find its kinetic energy K. Express your answer numerically, in joules.

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