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GK : Physics :Weight of a body in a lift

1)  If lift is stationary or moving with uniform speed ( either down or upward) , the apparent weight of a body is equal to its true weight.


2)  If lift is going up with acceleration, the apparent weight of a body is more than the true weight.


3)  If lift is going down with acceleration, the apparent weight of a body is less than the true weight.


4)  If the cord of the lift is broken, it falls freely. In this situation the weight of the body in the lift becomes zero. This is the situation of weight- lessness.


5)  While going down, if the acceleration of lift is more than acceleration due to gravity, a body in the lift goes in contact of the ceiling of lift.

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