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When burl and paul stand on opposite ends of a sign-painting scaffold, the tensions in the supporting ropes combine to equal zero. are in equilibrium. are equal. depend on the relative weights of burl and paul.

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The tensions in the supporting ropes combine to equal zero, if the tensions are equal.

Tension exerted by Burl and Paul

The sum of the tension exerted by Burl and Paul is determined as follows;

∑T = Ta + Tb

The net tension will be zero, when Ta is equal to Tb

0 = Ta - Tb

Ta = Tb

Thus, the tensions in the supporting ropes combine to equal zero, if the tensions are equal.

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