Recent content by LJ Fiddle

Yup. I'm stuck here too. There's got to be more to this.

I see what you mean, by have no idea of going about doing that. It makes sense because when I use the equation I was shown using angle 0 degrees, I got the frictional force.

The force the girl exerts on the sled is not given. So that must be found to get the work. Normal force = mg = 157(9.81) = 1540 N Friction = u_k * Normal force = 1540 N * 0.12 = 185 N The angle she is pulling it at is 36 degrees above the horizontal. She pulls it 1.0 km so what is the...

Homework Statement By means of a towrope, a college girl pulls a sled loaded with firewood toward her sorority house along a level, icy road. The coefficient of friction between the sled and the road is u_k = 0.12 and the mass of the sled plus its load is 157 kg. The towrope is attached to...