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Blocks m(1) and m(2) starts from rest an...

Blocks `m_(1)` and `m_(2)` starts from rest and move to right with accelerations as shown. If `t` is in second then the time when block `m_(3)` again come to rest from `t =0` is (pulley and strings are ideal) :
.

A

`(sqrt(5))/(2) sec`

B

`(1+ sqrt(5))/(2) sec`

C

`(1+ sqrt(3))/(2) sec`

D

`1 sec`

Text Solution

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The correct Answer is:
B
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