Question

Three weight A, B and C are connected by string as shown in the figure. The system moves over a frictionless pulley. The tension in the string connecting A and B is (where g is acceleration due to gravity)

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

$T=\frac{2\times m_B{m}_C}{m_A+m_B+m_C}\times g=\frac{2\times 1\times 5}{3+1+5}\times g=\frac{10}{9}g$