A horizontal spring with spring constant 140N/m is compressed 15cm and used to launch a 2.1kg box across a frictionless, horizontal surface.
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Question

A horizontal spring with spring constant 140 N/m

 is compressed 15 cm

 and used to launch a

2.1 kg

 box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on the surface is 0.15.


Use work and energy to find how far the box slides across the rough surface before stopping.

Express your answer to two significant figures and include the appropriate units.

Top Answer

The distance that box slides... View the full answer

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