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[" (37.) A ball is dropped from a bridge...

[" (37.) A ball is dropped from a bridge "122.5m" high.After the "],[" first ball has fallen for "2s" ,a second ball is thrown straight "],[" down after it,what must the initial velocity of the second "],[" ball be,so that both the balls hit the surface on water at "],[" the same time? "],[[" (a) "26.1m/s," (b) "9.8m/s],[" (c) "55.5m/s," (d) "49m/s]]

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