139 A 60 kg man stands on a spring balance in a lift At some

Last updated: 6/10/2023

139 A 60 kg man stands on a spring balance in a lift At some instant he finds that the reading on the scale has changed from 60kg to 50 kg for a while and then comes back to the original mark What is his conclusion 1 The lift was in constant motion upwards 2 The lift was in constant motion downwards 3 The lift while in motion downward suddenly stopped 4 The lift while in motion unward suddenly stonned B directly 1 Directl 2 Head 5 3 Head 31 4 The trip 144 A force F