physics

A 236 kg block is released at a 4.2 m height as shown. The track is frictionless except for a portion of length 6.2 m . The block travels down the track, hits a spring of force constant k = 1483 N/m . The coefficient of kinetic fric- tion between surface and block over the 6.2 m track length is 0.52 .
The acceleration of gravity is 9.8 m/s2 .

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