Homework SourseA 230 kg sled is being pulled across a horizontal surface at
A 23.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 75.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.
µk = _______
µk = _______
Solution
net horizontal force = F cos30
= 64.95 N
net normal force = mg -Fsin 30
= 187.9 N
k N = 64.95 N
k = 0.3457
