Question

Three equal weights of mass m each are hanging on a string passing over a fixed
culley as shown in Fig. What are the tensions in the string connecting weights A to B​

Answer 1

explaination :

Let acceleration of system be a

For mass A=T−mg=ma-----(1)

For mass B=T1+mg−T=ma-----(2)

For mass C=T1−mg=ma-----(3)

Solving the three equations we get

T1=2mg3