Question

Three equal weights A, B and C of mass 2 kg each are hanging on a string passing over a fixed frictionless pulley as shown in the figure The tension in the string connecting weights B and C is

• A. Zero
• B. 13 N
• C. 3.3 N
• D. 19.6 N

Answer 1

The correct option is B

13 N

Tension between $m_2$ and $m_3$ is given by
$T=\frac{2m_1{m}_3}{m_1+m_2+m_3}\times g$
$=\frac{2\times 2\times 2}{2+2+2}\times 9.8=13N$