A uniform rope of length 20m and mass 20kg is shown in the figure. The hanging part on each side is 6m. C is the middle point of ACB part of rope. Find the tension at point C. Assume that the rope is in equilibrium.
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Solution
Since, this body is in equilibrium tension at point A and B will be same, let it be T.
Then,
T=6g
T=60N
For tension at point C consider its half part,
Since, there is no force to balance the weight 50 a component of tension in each element will balance its weight.