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Can u solve this??????puzzle

a marble going at a speed of 2ms inverse 1 hits another marble of equal mass at rest.if the collision is perfectly elastic,then the velocity of the first marble after collision is

1.4ms-1(read as inverse 1)

2.0ms-1(read as inverse 1)

3.2ms-1(read as inverse 1)

4.3ms-1(inverse 1)

.,,,,,,,plzz do it with full steps.......need it quickly.....plzz help!!!!if posssible

1
by maduri

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