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22-04-2022
Physics

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A 3m plank AB of mass 20kg has a center of gravity 2m from end A and rests on supports R1 and R2 both 0,5m from either end. It also carries a 10kg block at end A. Calculate the reactions at R1 and R2

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22-04-2022

Answer:

130.7 N

Explanation:

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