- #1

samjverm

- 2

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- Homework Statement
- Calculate the horsepower required to move a 2000 lb. car half a mile in 6 seconds.

- Relevant Equations
- 1 hp = 550 ft lb / sec

work = distance (ft) * force (lbs)

hp = (distance(ft) * weight(lbs)) / 550(ft lbs/sec)

power = work / time

My attempt at the solution goes as follows:

power = work / time

power = (distance * force) / time

power = (2640 ft * 2000 lb) / 6 seconds = 880000 ft lb / sec

horsepower = 880000 ft lb/sec / 550 ft lb/sec = 1600 hp

however i do not know if this is correct

power = work / time

power = (distance * force) / time

power = (2640 ft * 2000 lb) / 6 seconds = 880000 ft lb / sec

horsepower = 880000 ft lb/sec / 550 ft lb/sec = 1600 hp

however i do not know if this is correct