Concept explainers
Friction and climbing shoes. Shoes for the sports of bouldering and rock climbing are designed to provide a great deal of friction between the foot and the surface of the ground. On smooth rock these shoes might have a coefficient of static friction of 1.2 and a coefficient of kinetic friction of 0.90.
73. A person wearing these shoes stands on a smooth horizontal rock. She pushes against the ground to begin running.
What is the maximum horizontal acceleration she can have without slipping?
- A. 0.20 g
- B. 0.75 g
- C. 0.90 g
- D. 1.2 g
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