Question

A man of weight $mg$ is moving up in a rocket with an acceleration of $4g$. The apparent weight of the man in the rocket is

• A. $zero$
• B. $4mg$
• C. $5mg$
• D. $mg$

Answer 1

The correct option is C

$5mg$

Step 1: Given Data:

Weight of body, $w=mg$ [Where, $m$ is mass, $g$ is the acceleration due to gravity]

Upward acceleration, $a=4g$

Step 2: Formula used:

Apparent weight is the net normal reaction applied to the body by the surface.

Apparent weight $=w+ma$

Step 3: Calculating the apparent weight:

Here, the net normal reaction is provided to the man by the surface of the rocket.

Apparent weight $=mg+4mg$

$=5mg$

Hence, option C is the correct answer.