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There blocks of masses `m_(1),m_(2)` and `m_(3)` are connected by massless strings as shown in figure on a frictionless table. They are pulled with a force `T_(3)=50` N. If `m_(1)=10` kg, `m_(2)=6` kg and `m_(3)=2` kg, the tension `T_(2)` will be

A

20 N

B

45 N

C

10 N

D

32 N

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