Question

A light string passes over a frictionless pulley. To one of the ends of the string a mass of 6 kg is attached. To the other end a mass of 10 kg is attached. Tension in the string is

• A. 73.5 N
• B. 53.7 N
• C. 37.5 N
• D. 35.7 N

Answer 1

Answer: (A)

73.5 N

Answer 2

Tension, T = $\frac{2m_1m_2 \, g}{m_1+ m_2}$ $= \frac{2 \times 6 \times 10 \times 9.8}{(6 + 10)}$ $= 73.5 \, N$