A man standing on a lift that is descending does not feel any weight because
-
A.
the inside of the lift is air tight -
B.
the lift is in vacuum -
C.
there is no reaction from the floor of the lift -
D.
there is no gravitational pull on the man in the lift
Correct Answer: Option C
Explanation
The resultant force acting on the man is given by w = mg – R
Mg – mg = 0
The man feels weightless because the reaction, R is equal to the weight mg