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Question: A 3.7 kg box is sliding down a surface that is inclined downwards by 30° below the horizontal. Initially the box is at rest, and after sliding down by a distance of 1 m along the surface the box reaches the level floor. When the box just reached the level floor, the speed of the box is measured to be 2 m/s.
Part A: How much energy of the box has been lost (dissipated) by the friction?
I want help to find how much energy of the box has been lost (dissipated) by the friction.
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