One horsepower is equal to________________?
Correct answer: A. 550 lbf.ft/second
- A. 550 lbf.ft/second
- B. 550 kgf.m/second
- C. Both A. and B.
- D. 550 lbf.ft./hr
Explanation
The mechanical horsepower definition is 1 hp = 550 lbf·ft/s. The metric expression 550 kgf·m/s is not equivalent to one horsepower, making A the correct choice.
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