Question

Three weights are hanging over a smooth fixed pulley as shown in the figure. What is the tension in the string connecting weights `B` and `C` ?

A. `g`
B. `g//9`
C. `8g//9`
D. `10g//9`

Answer 1

Correct Answer - D
`a=((5-4)/(5+4))g=(g)/(9)`
`T-mg=ma`

`T=m(g+a)`
`=1(g+(g)/(9))=(10g)/(9)`