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 very broad elevator is going up vertically with constant acceleration of 2 m/s^(2) . At the instant when its velocity is 4 m/s a ball is projected from the floor of the lift with a speed of 4 m/s relative to the floor at an elevation of 30^(@) . The range of ball over the floor of the lift is :

The mass of a lift if 600kg and it is moving upwards with a uniform acceleration of 2m//s^(2) . Then the tension in the cable of the lift is :

The mass of a lift if 600kg and it is moving upwards with a uniform acceleration of 2m//s^(2) . Then the tension in the cable of the lift is :

A very broad elevator is going up vertically with a constant acceleration of 2m//s^(2) . At the instant when its velocity is 4m//s , a ball is projected from the floor of the lift wht as of 4m//s relative to the floor at an elevation of 30^(@) . The time taken by the ball to return the floor is (g=10m//s^(2))

An elecator is going up with an upward acceleration of 1m//s^2 . At the instant when its velocity is 2 m//s , a stone is projected upward from its floor with a speed of 2m//s relative to the elevator, at an elevation of 30^@ . (a) Calculate the time taken by the stone to return to the floor. (b) Sketch the path of the projectile as observed by an observer outside the elevator. (c) If the elevator was moving with a downward acceleration equal to g, how would the motion be altered?

An elecator is going up with an upward acceleration of 1m//s^2 . At the instant when its velocity is 2 m//s , a stone is projected upward from its floor with a speed of 2m//s relative to the elevator, at an elevation of 30^@ . (a) Calculate the time taken by the stone to return to the floor. (b) Sketch the path of the projectile as observed by an observer outside the elevator. (c) If the elevator was moving with a downward acceleration equal to g, how would the motion be altered?

The mass of a lift is 600 kg and it is moving upwards with a uniform acceleration of 2m//s^(2) . Then the tension in the cable of the lift is-

A lift is moving with uniform downward acceleration of 2 m//s^(2) . A ball is dropped from a height 2 metre from the floor of lift. Find the time after which ball will strike the floor.

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.