How much power would be used to move a 15-pound valve housing 10 feet in 5 minutes?

How much power would be used to move a 15-pound valve housing 10 feet in 5 minutes?

• A. 15 foot-pounds force per minute (ft-lbf/min)
• B. 30 ft-lbf/min
• C. 150 ft-lbf/min
• D. 300 ft-lbf/min

Answer: (B)

To determine the amount of power used to move a 15-pound valve housing over a distance of 10 feet in 5 minutes, we first need to calculate the work done. Work is defined as the force applied to move an object multiplied by the distance it is moved. In this scenario, the force is equal to the weight of the valve housing, which is 15 pounds, and the distance moved is 10 feet. The work done in this case can be calculated as follows: Work = Force × Distance Work = 15 pounds × 10 feet = 150 foot-pounds (ft-lbf) Next, power is defined as the rate at which work is done over time. To find the power in foot-pounds per minute (ft-lbf/min), we need to divide the total work done by the time taken in minutes. The time given is 5 minutes. Power = Work / Time Power = 150 ft-lbf / 5 minutes = 30 ft-lbf/min Hence, the power used to move the valve housing is 30 ft-lbf/min, which is why this answer is correct. This calculation provides a clear understanding of how work, distance, and time relate to power in the context

To determine the amount of power used to move a 15-pound valve housing over a distance of 10 feet in 5 minutes, we first need to calculate the work done. Work is defined as the force applied to move an object multiplied by the distance it is moved. In this scenario, the force is equal to the weight of the valve housing, which is 15 pounds, and the distance moved is 10 feet.

The work done in this case can be calculated as follows:

Work = Force × Distance

Work = 15 pounds × 10 feet = 150 foot-pounds (ft-lbf)

Next, power is defined as the rate at which work is done over time. To find the power in foot-pounds per minute (ft-lbf/min), we need to divide the total work done by the time taken in minutes. The time given is 5 minutes.

Power = Work / Time

Power = 150 ft-lbf / 5 minutes = 30 ft-lbf/min

Hence, the power used to move the valve housing is 30 ft-lbf/min, which is why this answer is correct. This calculation provides a clear understanding of how work, distance, and time relate to power in the context