Question 4
Equilibrium of ForcesThe figure above represents a frictionless pulley system in which a weight W is in equilibrium with a weight of 40 N. Find the value of W.
- A.13.3 N
- B.20.0 N
- C.40.0 N
- D.80.0 N
Show the answer and explanation
Answer: C (40.0 N)
Explanation
The same rope passes over a frictionless pulley, so the tension is the same on both sides. W balances the 40 N weight, so W = 40 N.