How Much Work Is Done When Pulling a Sled at an Angle?

[joesmith273]

Homework Statement

A sled is pulled across the barren winter landscape at an angle of 26.0° from the ground with a force of 74 N. If the sled is pulled over a distance of 27 m, how much work was done on the sled? Round your answer to two decimals

Homework Equations

W = f x s x Cos

The Attempt at a Solution

I calculated the force , 74, times 27 to get 1998. Then I multiplied 1998 by the cosine of 26 to get 1292.54 but it says that it's wrong. My teacher told me to think about the displacements but I don't get his meaning.

 

[RedDelicious]

Then I multiplied 1998 by the cosine of 26 to get 1292.54

You multiplied by cosine of 26 what ? Radians or degrees?

 

[PeroK]

Homework Statement

A sled is pulled across the barren winter landscape at an angle of 26.0° from the ground with a force of 74 N. If the sled is pulled over a distance of 27 m, how much work was done on the sled? Round your answer to two decimals

Homework Equations

W = f x s x Cos

The Attempt at a Solution

I calculated the force , 74, times 27 to get 1998. Then I multiplied 1998 by the cosine of 26 to get 1292.54 but it says that it's wrong. My teacher told me to think about the displacements but I don't get his meaning.

Is the sled being pulled over flat ground or up an incline?

 

[CWatters]

Your method looks fine but see post #2.

Your teachers is talking about a common error but it's one that you didn't make.