Question

34. Two masses (M+m) and (M-m) are
attached to the ends of a light inextensible
string and the string is made to pass over
the surface of a smooth fixed pulley. When
the masses are released from rest, the
acceleration of the system is
1) gm/M
2)2gM/m
3)gm/2M
4)g(MP-m)/2M​

Answer 1

Answer:

1) gm/M

Explanation:

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

= [(M-m)-(M+m)]-g/M+m+M-m

= 2mg/2M

a= gm/M