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31. On a frictionless wooden track as shown below, a block ofm2 = 10.0 kg initially sits at rest on the flat part which is infinitely long; and a block of mass m-0.5 kg is to be released from a point of the track which is at a height h above the flat part of the track. Collisions between blocks of mi and m2 are always elastic. How many total collisions,can happen between the two blocks? 、、、 a. c. d more than 3 (-4)ut e. Not enough information as the value of h is not given.
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