20. A 5 kg block is pulled along a rough level surface by a pull force P, where P = 300 N. The figure shows the free-body diagram for the block, fk represents the force of kinetic friction. If the coefficient of kinetic friction between the block and the surface, k = 0.3, calculate the magnitude of the block's acceleration? Hint: Obtain two equations from Newton's second law, only one of them directly involve acceleration but you will still need the other equation. FN fko.? 3 5kg mg 300N olay ontos antiga P ΣFx = max= P_-4₁₂² = Max {Fy=may = FN-pg = mal FN-g=a el or sups P-MR₂ = m (FN Мк
20. A 5 kg block is pulled along a rough level surface by a pull force P, where P = 300 N. The figure shows the free-body diagram for the block, fk represents the force of kinetic friction. If the coefficient of kinetic friction between the block and the surface, k = 0.3, calculate the magnitude of the block's acceleration? Hint: Obtain two equations from Newton's second law, only one of them directly involve acceleration but you will still need the other equation. FN fko.? 3 5kg mg 300N olay ontos antiga P ΣFx = max= P_-4₁₂² = Max {Fy=may = FN-pg = mal FN-g=a el or sups P-MR₂ = m (FN Мк
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....
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