Lift में शीशा क्यों? Why there is mirror in lift? #shorts

What is dynamic lift?

A block of wood floats in a bucket of water placed in a lift. Will the block sink more or less if the lift starts accelerating up?

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 block of wood floats in a bucket of water in a lift. Will the block sink more of less if the lift starts ac celerating up ?

One feels heavier in a lift when the lift

Time period of a simple pendulum is T inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2, the time period of pendulum will be:

Exercise Questions|Lift Problems

1000 N force is required to lift a hook nd 10000 N force is reuires to lift a load slowly.Find power required to lift hook with load with speed v=0.5 m//s