Climber With A Weight Of 686.2 N Is Held By Rope, Force Of Rope Through Com. Angles θ = 44.5° (wall-rope) And 28.0° (wall-legs). Her Feet Are About To Sliding On The Wall, What Is Coefficient Of Static Friction Between Her And The Wall?


1 Answers

Oddman Profile
Oddman answered
The force normal to the wall exerted by the climber's feet is Usin[28o], where you is some unknown compressive force in the climber's legs. The vertical force exerted on the wall by the climber's feet is Ucos[28o]. At the point of impending motion, the coefficient of static friction will be Ucos[28o]/(Usin[28o]) = 1/tan[28o] = 1.88. Her shoes are pretty sticky.

Answer Question