Question

question 9
1 pts
the power expended doing 100 j of work in 50 s is
0.5 w
2 w
4 w
50 w

Explanation:

Step1: Recall power formula

Power $P=\frac{W}{t}$, where $W$ is work - done and $t$ is time.

Step2: Substitute values

Given $W = 100\ J$ and $t=50\ s$. Then $P=\frac{100\ J}{50\ s}$.

Step3: Calculate power

$P = 2\ W$.

Answer:

B. 2W