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A 25-kg block moving at 1.0 m/s coasts down a 4-m high ramp inclined at 20 degree with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.20. After reaching the bottom, the block slides along a level frictionless floor and strikes a spring with spring constant k = 1000 N/m.

A). How far does it compress the spring?

B). The ramp ices over before the block returns, resulting in a frictionless surface. How far back up along the ramp does the block travel?

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