When both arms are parallel. 

Answers (1)

Let be the angle between the arm

2T cos θ = mg

T = mg/2cosθ

Tension when cos θ is mass. this achieved when θ = 0

T = mg/2 = 40×10/2

= 200 N

The both arm should be parallel ..ll.e. either 0 or 360.


 

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