Solution to Exercise on Total Force-1

Question:

What is the total work done by the 60-N force? as per the figure below?
  1. 180 J
  2. 200 J
  3. 190 J
  4. 20 J
  5. 0 J

Solution:

Only the component of F which is in the direction of motion does work and is equal to:
W = F × d = (40 N) ×(5 m) = 200 J.

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