Q549
The apparent weight of a man in a lift is less the real weight when :
A.
The lift is going up with an acceleration
B.
The lift is going down with uniform speed
C.
The lift is going up with uniform speed
D.
The lift is going down with an acceleration
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
If the lift accelerates downwards with acceleration a, then the apparent weight of the man standing in the lift will be less than the true weight of the man by an amount ma. On the contrary, if the lift accelerates upwards with acceleration, then the apparent weight of the man will be greater than his true weight.