- #1

mybrohshi5

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## Homework Statement

A sleigh and driver with a total mass of 130 kg are pulled up a hill with a 15 degree incline by a horse

If the overall retarding frictional force is 800 N and the sled moves up the hill with a constant velocity of 5.0 km/h,

**what is the power output of the horse? (Express in horsepower, of course.)**

## Homework Equations

P=W/t

P=F*(v)

## The Attempt at a Solution

I first converted the 5 km/h to m/s

5km/h = 1.389 m/s

Not sure what to do now. I know there is a retarding force of 800N and i know the velocity so i want to say i can find the force by the horse to travel at that velocity with that retarding force but im not sure how. cause then i believe if that force is found i could multiply that by the velocity to get the power in watts then convert to horsepower.

thanks for any help :)