How much weight can one unit of mechanical horsepower lift?

How much weight can one unit of mechanical horsepower lift?

• A. 550 pounds one foot off the ground in one second
• B. 100 pounds one foot
• C. 1000 pounds one foot
• D. 200 pounds one foot

Answer: (A)

Power is the rate at which work is done, and one mechanical horsepower is defined as 550 foot-pounds of work per second. lifting 550 pounds by one foot in one second uses 550 foot-pounds of work in that second, which matches precisely one horsepower. That’s why this option is correct. The other scenarios would produce less or more power: 100 foot-pounds per second is about 0.18 hp, 1000 foot-pounds per second is about 1.82 hp, and 200 foot-pounds per second is about 0.36 hp.

Power is the rate at which work is done, and one mechanical horsepower is defined as 550 foot-pounds of work per second. lifting 550 pounds by one foot in one second uses 550 foot-pounds of work in that second, which matches precisely one horsepower. That’s why this option is correct. The other scenarios would produce less or more power: 100 foot-pounds per second is about 0.18 hp, 1000 foot-pounds per second is about 1.82 hp, and 200 foot-pounds per second is about 0.36 hp.