Question: ( 1 0 points ) To prove = t a n ' using the Coulomb's Frictional Law, where: = the coefficient of static sliding friction,

(10 points) To prove =tan' using the Coulomb's Frictional Law, where: = the
coefficient of static sliding friction, '= the angle of internal friction = the angle between
the resultant force and the normal force.
( 1 0 points ) To prove = t a n ' using the

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