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A box weighing 40N slides down from top of an inclined plane making an angle of 30 . Calculate the work done by the force of gravity in moving the box 2 m long along the plane . Assume the force of friction is 0
Since gravitation force is conservative .So work done by it depends on displacement. Here displacement is 1 m by applying sin function . Now by applying formula mgh we can get the work done by gravity which is 40 J
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