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A box with 11 kg of mass slides down an inclined plane that is 2.0 m...

A box with 11 kg of mass slides down an inclined plane that is 2.0 m high and 3.5 m long. Due to friction the box reaches 3.3 m/s at the bottom of the inclined plane. Beyond the inclined plane lies a spring with 650 N/m constant. It is fixed at its right end. The level ground between the incline and the spring has no friction

The box compressed the spring, got pushed back towards the incline by the spring. How far along the inclined plane, from the bottom, will the box temporarily stop on the inclined plane?

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Answer #1

using energy conservation

There is no energy loss to strike with spring and come back to bottom point . so speed will be same at bottom point

after that there is friction on incline surface

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