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A massless rod is arranged as shown. Find tension in string-1.

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A massless rod is arranged as shown. Find tension in string-1.

(1) 320 N

(2) 400 N

(3) 200 N

(4) 420 N

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1 Answer

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Best answer

(1) 320 N

As system is in equilibrium. Net torque about point = 0 

Tsin30° x 40 = 80 × 80 

T/2 = 160 

T = 320 N.

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