A cube with mass of m=80N is on the inclined plane with angle of phi=20 degrees. coeficient of static friction /mu_s = 0.25 coeficient of dynamic friction /mu_k = 0.15 Determine: what is the smallest size of the force F parallel to the inclined plane, which prevents the cube in the slide? what is the smallest size of the force F,  which the cube starts to move along the inclined plane up? At what value of the force F starts the cube to rise at a constant speed?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A cube with mass of m=80N is on the inclined plane with angle of phi=20 degrees.

  • coeficient of static friction /mu_s = 0.25
  • coeficient of dynamic friction /mu_k = 0.15

Determine:

  • what is the smallest size of the force F parallel to the inclined plane, which prevents the cube in the slide?
  • what is the smallest size of the force F,  which the cube starts to move along the inclined plane up?
  • At what value of the force F starts the cube to rise at a constant speed?
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