The masses of five balls at rest and lying at equal distances in a straight line are in geometrical progression with ratio 2 and their coefficients of restitution are each 2/3. If the first ball be started towards the second with velocity |
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The masses of five balls at rest and lying at equal distances in a straight line are in geometrical progression with ratio 2 and their coefficients of restitution are each 2/3. If the first ball be started towards the second with velocity |
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a) |
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b) |
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c) |
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d) |
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(d) We know that velocity of 2nd ball after collision is given by In present problem As four exactly similar type of collisions are taking place successively, hence velocity communicated to fifth ball |