A coin is dropped in a lift. It takes time `t_(1)` to reach the floor when lift is stationary. It takes time `t_(2)` when lift is moving up with costant acceleration. Then

A coin is released inside a lift at a height of 2m from the floor of the lift. The height of the lift is 10 m. The lift is moving with an acceleration of 9 m//s^(2) downwards. The time after which the coin will strike with the lift is : (g=10 m//s^(2))

A man of mass m is standing on the floor of a lift. Find his apparent weight when the lift is moving upwards with uniform acceleration a.

When a mass is suspended from the end of wire the top end of which is attached to the roof of the lift, the extension is 'e' when the lift is stationary . If the lift moves up with constant acceleartion g//2 the extension of the wire would be

A man of mass m is standing on the floor of a lift. Find his apparent weight when the lift is moving downwards with uniform acceleration a.

A barometer kept in a lift reads 11 cm of mercury, when the lift is stationary. Then the lift starts moving down with an acceleration a, where a lt g. What is the air pressure in the lift, as read by the barometer ?

A person is standing at the floor of lift drops a coin The coin reaches the floor of lift in time t_1 . if elevator is stationary and in time t_2 , if it is moving uniformly then

A person is standing at the floor of lift drops a coin The coin reaches the floor of lift in time t_1 if elevator is stationary and in time t_2 if it is moving uniformly then

A man in a lift throws a ball upwards with velocity v and catches it in time t _(1) when lift is moving up with some acceleration. Again he throws a ball up with same velocity 'V' and catches it in time 't _(2) ' when lift is moving down with same acceleration.Velocity of projection V is

A simple pendulum is hung in a stationary lift and its periodic time is T. What will be the effect on its periodic time T if (i) the lift is moving up with a uniform velocity v, (ii) the lift is moving up with a uniform acceleration a, and (iii) the lift is moving down with a uniform acceleration a?