Question
Physics Question on laws of motion
If a man of mass 50 kg is in a lift moving down with a acceleration equal to acceleration due to gravity, then the apparent weight of the man is:
A
0
B
100 N
C
25 N
D
5 N
Answer
0
Explanation
Solution
The correct option is: (A) 0.
With the provided mass of the boy being m = 50 kg, and as the boy moves downward with an acceleration a = 9.8 m/s², the apparent weight (W_app) can be calculated as:
Apparent Weight = m * (g - a) = 50 * (9.8 - 9.8) = 50 * 0 = 0.