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B
240N
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C
260N
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D
280N
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Solution
The correct option is B240N Using FBD For Equilibrium ∑Fx=0 T1cos37=T2cos53 T1×45=T2×35 ⇒4T1=3T2 ∑Fy=0 T1sin37+T2sin53=40g 3T1+4T25=40g putting T2=4T1/3 ⇒3T1+16T13=5×40g T1=(5×40×10)325=240N