
#1
Oct2710, 06:32 PM

P: 7

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 



#2
Oct2710, 06:40 PM

Sci Advisor
HW Helper
Thanks
P: 26,167

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? 



#3
Oct2710, 06:52 PM

P: 7

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




#4
Oct2710, 07:06 PM

P: 7

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



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