Tension problem :/

mrrocketknigh

Here's the problem: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 20.0(degrees) above the horizontal. The sledge moves a distance of 20.0m on a horizontal suface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension of the rope?


I don't know how to even start this problem, or how to find out what the tension is. Can anybody help me?
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution

tiny-tim

hi mrrocketknigh! welcome to pf!

if the speed is constant, then the acceleration is zero, so F_total = ma tells us that F_total = 0

so draw all the forces on the sledge, and get them to add to zero …

what do you get?

mrrocketknigh

What do you mean by "draw all the forces on the sledge and get them to add to zero"? I'm lost.

mrrocketknigh

Wait... is it 0??? I tried doing it myself this whole time, but to no avial...

tiny-tim

draw a diagram of the sledge, then draw all the forces on it …

what are they?