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From a lift moving upwards with a unifor...

From a lift moving upwards with a uniform acceleration a = `2 ms^(–2)`, a man throws a ball vertically upwards. with a velocity v = `12 ms^(-1)` releative to lift the ball comes back to the man after a time t find. t

A

2.4s

B

2s

C

1.5s

D

2.8s

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Form a lift moving upwards with a uniform acceleration a=2 m s^(-2), man throus a ball vertically upwards with a velcoity v= 12 m s^(-1) relative to the lift. The ball comes back to the man after a time t . Find the value of t in seconds.

A man in a lift ascending with an upward acceleration a throws a ball vertically upwards with a velocity v with respect to himself and catches it after t_1 seconds. After wards when the lift is descending with the same acceleration a acting downwards the man again throws the ball vertically upwards with the same velocity with respect to him and catches it after t_2 seconds?

A ball is thrown vertically upwards with a velocity of 49 ms^-1 . Calculate :The total time it takes to return to the surface of earth.

A person in an elevator accelerating upwards with an acceleration of 2ms^(-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) )

An elevator car (lift) is moving upward with uniform acceleration of 2 m//s^(2) . At the instant, when its velocity is 2 m/s upwards a ball thrown upward from its floor. The ball strikes back the floor 2s after its projection. Find the velocity of projection of the ball relative to the lift.

A person in an elevator accelerating upwards with an acceleration of 4 ms^(-2) tosses a coin vertically. Upwards with a speed of 21 ms^(-1) with respect to himself. The time at which coin will back into his hand is (g = 10 ms^(-2))

A ball is thrown vertically upwards with a velocity of 49 ms^-1 . Calculate :The maximum height to which it rises

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