Q.

A light string passing over a smooth light fixed pulley connects two blocks of masses m1 and m2.

If the acceleration of the system is g/8, then the ratio of masses is     [2024].

1 97  
2 81  
3 43  
4 53  

Ans.

(1)

a=(m1-m2)g(m1+m2)=g8

8m1-8m2=m1+m2

7m1=9m2

m1m2=97