How far to the right of support is the planks center gravity

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Q. A 54 N crate is suspended from the left end of a plank. The plank weighs 21N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.3m from the left end of the plank. How far to the right of support is the plank's center of gravity?

Reference no: EM1344777

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