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A block of mass 4kg is placed on a horiz...

A block of mass 4kg is placed on a horizontal surface is connected to another mass of 3 kg by a mass less string going over a pulley as shown. At the instant, `theta= 60^@` and the blocks are at momentary rest, the tension in the string is `(g = 10 m//s^(-2))`

A

41.05 N

B

140 N

C

35.72 N

D

49.11 N

Text Solution

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The correct Answer is:
B
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