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In the arrangement shown in fig. m(1)=1k...

In the arrangement shown in fig. `m_(1)=1kg, m_(2)=2 kg`. Pulleys are massless and strings are light. For what value of M, the mass `m_(1)` moves with constant velocity.

A

4 kg

B

8 kg

C

6 kg

D

10 kg

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The correct Answer is:
A
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