A disc of mass `50 g` slides with zero initial velocity down an inclined plane at an angle `30^@` to the horizontal. Having traversed a distance of `50 cm` along the horizontal plane, the disc stops. Find the work performed by the friction forces over the whole distance, assuming the friction coefficient `0.15` for both inclined and horizontal planes. `(g =10 m//s^(2))`.
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WORK, ENERGY AND POWER
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A disc of mass m=50g slides with the zero initial velocity down an inclined plane set at an angle alpha=30^@ to the horizontal, having traversed the distance l=50cm along the horizontal plane, the disc stops. Find the work performed by the friction forces over the whole distance, assuming the friction coefficient k=0.15 for both inclined and horizontal planes.
A disc of mass m slides with the zero initial velocity down an inclined plane of inclination theta to the harizontal, having traveled the distance d along the horizontal plane, the disc stops. Find the work performed by the friction over the whole distance, assuming the friction coefficient mu for both the inclined and horizontal planes.
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