a disc of mass 50gm slides down from rest on an inclined plane at an angle 30°. after reaching the bottom it covers 50cm on a straight track and finally stops. if friction coefficient is 0.15 for both the planes find out work done by friction for the whole journey
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A disc of mass m=50g slides with the zero initial velocity down an inclined plane set at an angle α=30∘ to the horizontal, having traversed the distance l=50cm along the horizontal plane, the disc stops
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