Question
An object weighing 60 kg is kept in a lift . Find its weight as a recorded by a spring balance when lift
(a) Moves upward with a uniform velocity of 2 m/s
(b) Moves upward with a uniform acceleration of 2.2 m/s2
(c) Moves downward with a uniform acceleration of 2.8 m/s2
(d) Falls freely under gravity .