3. Two blocks A and B of masses 3m and m, respectively, are connected by a massless and inextensible string.
The whole system is suspended by a massless spring as
shown in the figure. The magnitude of acceleration of
A and B immediately after the string is cut, are, respec-
tively,
[NEET 2017]
celet
A3m
B)
m
p
(b) 8,8