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A body of mass 50 kg is hung by a spring...

A body of mass 50 kg is hung by a spring balance in a lift. Calculate the reading of the balance when :
The lift is descending with a constant velocity of 2 m/s.

Text Solution

Verified by Experts

Mass of body = 50 kg
Lift is descending with a constant velocity of 2 m/s.
Acceleration (a) = 0
So, W = m(g-a)
`" "` = m(g-0)
`" " W=50 times9.8`
`" "=490N or 50kg `
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