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Two blocks A and B of masses 3 m and m r...

Two blocks A and B of masses 3 m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively:

A

`g, g/3`

B

g,g

C

`g/3, g/3`

D

`g/3, g`

Text Solution

Verified by Experts

The correct Answer is:
D

When the string is cut T= 0
for block A
`3 ma = 4mg - 3 mg`
`a = g/3`
For block B
mg - ma `rArr a =g`
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