A rope that makes an angle of 28 degrees with respect to the horizontal is used to pull a sled.The sled has a mass of 35 kg and the tension in the rope is 17 N.How much work is done by the force of the rope if the sled moves a horizontal distance of 5.6 m?

Question

Quizplus · Accepted Answer

First, we need to find the force parallel to the ground, which is the tension in the rope. We can find this by multiplying the tension by the cosine of the angle:

F_parallel = 17 N * cos(28°) = 14.95 N

Next, we can find the work done by multiplying the force parallel to the ground by the distance moved:

W = F_parallel * d = 14.95 N * 5.6 m = 83.72 J

Therefore, the closest option is B, 84 J.

A Rope That Makes an Angle of 28 Degrees with Respect