Question

A particle of small mass m is joined to a very heavy body by a light string passing over a light pulley. Both bodies are free to move. The total downward force on the pulley due to the string is nearly:-
A) mg
B) 2mg
C) 4mg
D) cannot be determined

Answer 1

Answer:

2mg

Explanation:

if mass of heavy body is M

then

Mg-T =Ma

T-mg=ma

after solve and assume1+m/M=1

T=2mg