An elevator is moving upward with an acceleration a it has velocity v when a man inside the elevator lifts a body of mass m through a height h ( in time t). The average power developed by the man is

A lift is going up with an acceleration 2 g. A man is inside the lift and his mass is m What will be the reaction of the floor on the man ?

An elevator, in which a man is standing, is moving upward with a constant acceleration of 2 m//s^2 . At some instant when speed of elevator is 10 m//s , the man drops a coin from a height of 1.5 m . Find the time taken by the coin to reach the floor.

A lift is going up with an acceleration 4g. A man is inside the lift and his mass is 'm'. What will be the reaction of the floor on the man?

The weight of a man in a lift moving upwards with an acceleration 'a' is 600 N. When the lift moves downwards with the same acceleration his weight is found to be 360 N. The real weight of the man is

An elevator of mass M with a person of mass m is moving upward with uniform velocity vecv . What is the power delivered by the elevator?

An elevator of mass M with a person of mass m is moving upward with uniform velocity vecv . What is the power delivered by the elevator?

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.

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.

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval ?