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Two balls A and B of masses 40 kg and 50 g are moving at speeds of 40 ms and 30 ms respectively along a straight line in same direction If after collision balL starts moving with 20 ms in opposite direction then what will be the speed of bal ?
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Answer:speed of the ball is a ball is 40ms b ball is30ms .after collision a ball is 20ms b ball is 20ms
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