Question

Two blocks of mass 5 m and m are vertically hanged and are connected by a light string which passes over a pulley of negligible mass and friction. What is the acceleration of the masses in terms of the acceleration due to gravity, g?​

Answer 1

Answer:

4/6g

Explanation:

let the two masses are at the same level initially

forces acting on 1st block(5m) are

T (tension of the string upward)

5mg (gravitation force downward)

similarly on 2nd block

T (tension of the string upward)

mg (gravitation force downward)

5ma= 5mg-T. (1)

ma=T -mg. (2)

adding (1)&(2)

6ma=4mg

a=4/6g.