A force given by F(t) = (5t-1/3t^2)i N acts on a mass m = 4.2 kg for 15 s. If thecoefficient of kinetic friction between m and the surface is μk = 0.20 and the coefficient of staticfriction between m and the surface is μs = 0.4. (a) What is the mass maximum acceleration? (b)At what time the mass will start moving? (c) What is the velocity when the force has themaximum value? (d) Plot the graph for the friction force vs time.

A force given by F(t) = (5t-1/3t^2)i N acts on a mass m = 4.2 kg for 15 s. If thecoefficient of kinetic friction between m and the surface is μk = 0.20 and the coefficient of staticfriction between m and the surface is μs = 0.4. (a) What is the mass maximum acceleration? (b)At what time the mass will start moving? (c) What is the velocity when the force has themaximum value? (d) Plot the graph for the friction force vs time.

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter7: Hamilton's Principle-lagrangian And Hamiltonian Dynamics

Section: Chapter Questions

Problem 7.12P

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