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Id]both the block will reach the ground with same speed but the freely falling block first[86] An elevator in which a man is standing is moving upwards with a speed of 10 mlsec. If the mandrops a coin from a height of 2.45 meter, it reaches the floor of the elevator after a time: (9-9.8m/sec)[c] 2 s[d] s2.tiold Dlina blows form

Answer»

As the initial velocity of the coin(as the man dropping the coin is moving up with elevator) and the velocity of the floor of elevator is same so the elevator can be taken at rest.Usings = ut + 1/2 at^2u = 0 s= 2.45mt = (4.9/9.8)^0.5 = (1/2)^0.5 option b



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