Normal Force: Solution

A force of 60 N is used to drag a sled 5 m across the ground.
The force is directed at an angle upward from the sled as shown in figure.
Question: What is the work done by the horizontal component of the force?
  1. 180 J
  2. 200 J
  3. 190 J
  4. 20 J
  5. 0 J
The horizontal component of force is 40 N and is in the direction of motion.
W = F × d = (40 N) ×(5m) = 200 J.

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Date of last modification: Summwe, 2019