Two blocks A and B of masses 2m and respectively, are connected by a massless and inextensible string. The whole system is suspended by a masslessspring as shown in the figure. The magnitude of acceleration of A and B, immediately after the string is cut, are respectively

Options

A. g,g/2
B. g/2,g
C. g,g
D. g/2,g/2

Answer

B

Explanation

T=mg, F=2mg+T=3mg

`a_(1)=g`
`3mg-2mg=2ma_(2)`
`a_(2)=(g//2)`