A horizontal bar of negligible weight has a 55.10 lb weight, Ask an Expert

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Q1. A horizontal bar of negligible weight has a 55.10 lb weight hanging from the left end and a 72.0 lb weight hanging from the right end. The bar is seen to balance 97.50 in from the left end. Find the length of bar.

Q2. Does the pivot point (as in the triangle in the diagram upon which the ruler balances) exert a force on the ruler? Does it exert a nonzero torque about the pivot?

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Category:- Physics
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