30. An object is acted upon by an applied force F and a normal force N due to a surface with coefficients of static and kinetic friction µ, and µk, respectively. Which of the following statements is ALWAYS TRUE? A. The frictional force is opposite in direction to F. B. The static frictional force is equal to μ.N. C. The kinetic frictional force is proportional to N. D. The kinetic frictional force is greater than the static frictional force.

30. An object is acted upon by an applied force F and a normal force N due to a surface with coefficients of static and kinetic friction µ, and µk, respectively. Which of the following statements is ALWAYS TRUE? A. The frictional force is opposite in direction to F. B. The static frictional force is equal to μ.N. C. The kinetic frictional force is proportional to N. D. The kinetic frictional force is greater than the static frictional force.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity

Section: Chapter Questions

Problem 1PE: A physics major is cooking breakfast when he notices that the frictional force between his steel...

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