A man weighing 80 kg, stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5m/s². What would be the reading on the scale ? (g = 10 m/s²)
1200 N
zero
400 N
800 N
Correct Option: A
Reading of the scale = Apparent wt. of the man = m(g + a) = 80 (10 + 5) = 1200 N
