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[ 8.A person in an elevator accelerating...

[ 8.A person in an elevator accelerating upwards with an acceleration of 2ms^(-2) ,tosses a coin vertically upwards with a speed of 20ms^(-1) .After how much time will the coin fall back into his hand? [ (Take g=10ms^(-2)), (c) 3.33s (d) 5s (a) 1.67s, (b) 2s]]

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A person in an elevator accelerating upwards with an acceleration of 2 m/s^(2) , tosses a coin vertically upwards with a speed of 20 ms^(-1) . After how much time will the coin fall back into his hand ? (g = 10 ms^(2) )

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