A $80$ kg exerciser is executing steady bicep curls. A tension force of T $=65$ N is developed against an exercise machine $($not shown$).$ Determine the coefficient of static friction which must exist between the shoes and the floor, if there is no slip $($g$=9\mathrm{.}81$ m$/$s$2).$

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During steady bicep curls the exerciser applies a force pulling upward on the dumbbell generating an equal reaction force tension force T exerted by t... View the full answer