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Physics, 17.12.2021 06:40 jungkookie001

9.) A 40-kg bookshelf requires a 200 N force to begin its motion. Once moving. It only requires a force of 50 N.
a. What is the normal force?
b. Determine the static coefficient of friction

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9.) A 40-kg bookshelf requires a 200 N force to begin its motion. Once moving. It only requires a...

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