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Three blocks A, B, and C of masses 3M, 2...

Three blocks A, B, and C of masses `3M, 2M`, and M are suspended vertically with the help of spring PQ and TU, and a string RS as shown in fig. If the acceleration of blocks A, B and C is `a_(1), a_(2)` and `a_(3)` , respectively, then

The value of acceleration `a_(2)` at the moment spring TU is cut is

A

`g//5`, upward

B

`g//5` downward

C

`g//3`, upward

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
D
After TU is cut
`a_(1)=a_(2)=(6Mg-3Mg-2Mg)/(5M)=g//5`.
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Knowledge Check

  • Three blocks A, B, and C of masses 3M, 2M , and M are suspended vertically with the help of spring PQ and TU, and a string RS as shown in fig. If the acceleration of blocks A, B and C is a_(1), a_(2) and a_(3) , respectively, then The value of acceleration a_(3) at the moment spring PQ is cut is

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    g, downward
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    g, downward
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  • If the blocks are moving as shown in the figure the relation between a_(1) , a_(2) and a_(3) will be.

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    `2a_(1)+2a_(2)+a_(3)=0`
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    C
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    D
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