9. Work & Energy
Net Work & Work-Energy Theorem
9. Work & Energy
Net Work & Work-Energy Theorem
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You pull a 3kg box on a flat surface. The coefficient of kinetic friction is 0.6. When you pull the box horizontally through a distance of 10m, it accelerates at 2m/s2. Find the net work on the box.
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To pull a 51 kg crate across a rough floor, a worker applies a force of 100 N, directed 37°above the horizontal. The coefficient of friction is 0.16. If the crate moves 3.0 m, what is the total work done on the crate?
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A box slides across the floor with an initial speed of 3.5m/s. If the coefficient of kinetic friction is 0.15, how far will the box slide before stopping completely?
3747views45rank - Scelta multiplaRhys gave a crate a shove across a horizontal floor. When the crate left his hands, it was moving . If the coefficient of kinetic friction between the crate and the floor is 0.32, how far will the crate slide? Use energy concepts to solve this problem.2318views1rank








