Question 23
Newton's Laws and MomentumThe value of T in the diagram is
- A.10.0 N
- B.40.0 N
- C.20.0 N
- D.111.8 N
Show the answer and explanation
Answer: C (20.0 N)
Explanation
The vertical parts of the two equal tensions hold up the 20 N weight: 2T sin 30° = 20, so T × 1 = 20 and T = 20.0 N.