To determine the power in the first option we just need to make the quotient given:
[tex]\frac{250\text{ ft-lbs}}{50\text{ s}}=5\text{ }\frac{\text{ ft-lbs}}{\text{ s}}[/tex]
To determine the second power, we first need to convert the minutes to seconds; we know the one minute have 60 seconds and then 4 min is equal to 240 s. Hence have:
[tex]\frac{2400\text{ ft-lbs}}{4\text{ min}}=\frac{2400\text{ ft-lbs}}{240\text{ s}}=10\text{ }\frac{\text{ ft-lbs}}{\text{ s}}[/tex]
Therefore, the fist result is 5 and the second result is 10.
