An elastic ball at rest with ccoefficient of restitution 1/2 is dropped from a height h on a smooth floor. The total distance covered by the ball is??
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Friction is caused by the irregularities on the two surfaces in contact. Even those surfaces which appear very smooth have a large number of minute irregularities on them. ... So the force of friction is greater if a roughsurface is involved.
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Friction is caused by the irregularities on the two surfaces in contact. Even those surfaces which appear very smooth have a large number of minute irregularities on them. ... So the force of friction is greater if a roughsurface is involved.
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