a lawnmower engine running for 20 min does 4,560,000 j of work. what is the power output of the engine…

a lawnmower engine running for 20 min does 4,560,000 j of work. what is the power output of the engine? (power: p = w/t) 3800 w 228,000 w 91,200,000 w 547,200,000 w

a lawnmower engine running for 20 min does 4,560,000 j of work. what is the power output of the engine? (power: p = w/t) 3800 w 228,000 w 91,200,000 w 547,200,000 w

Answer

Explanation:

Step1: Convert time to seconds

We know 1 min = 60 s, so 20 min = 20×60 s = 1200 s.

Step2: Use power formula

The power formula is $P=\frac{W}{t}$, where $W = 4560000\ J$ and $t = 1200\ s$. Then $P=\frac{4560000}{1200}=3800\ W$.

Answer:

3800 W