Question

Coolie A takes $1$min to raise a box of mass m through a height of $2.0$m. another coolie B takes $30$s for the same job. Which one has greater power?

• A. Coolie A
• B. Coolie B
• C. Both have the same power
• D. Can't say

Answer 1

The correct option is B Coolie B

Power $=P=F.s/t$

For equal F and s, P is inversely proportional to t

Since, Coolie B takes lesser time.

So work done by Coolie B is greater than that by Coolie A.

Hence, correct answer is option $B$