When a lift is going up with uniform acceleration, the apparent weight of a person is $W_{1}$
When the lift is stationary, his apparent weight is $W_{2}$
When the lift falls freely his apparent weight is $W_{3}$
When the lift is going down with uniform acceleration which is less than the acceleration due to gravity, his apparent weight is $W_{4}$
The increasing order of these four weights is

Question

When a lift is going up with uniform acceleration, the apparent weight of a person is

W_{1}

When the lift is stationary, his apparent weight is

W_{2}

When the lift falls freely his apparent weight is

W_{3}

When the lift is going down with uniform acceleration which is less than the acceleration due to gravity, his apparent weight is

W_{4}

The increasing order of these four weights is

Toppr Admin · Accepted Answer

When lift accelerates up- pseudo force acts downwards- hence it increases apparent weight- W1-gt-mgWhen lift is stationary- W2-mgWhen lift falls freely- it accelerates with g downwards- causing an upwards pseudo force in the frame of the lift equal to mg- Hence total force is 0- So weight is 0- W3-0When lift accelerates down- pseudo force acts upwards- -xA0-hence it decreases apparent weight W4-lt-mg- but also the acceleration is less than g- therefore W4-m-g-x2212-a-gt-0