In Fig. 6-49, a 49 kg rock climber is climbing a chimney.
Chapter , Problem 63(choose chapter or problem)
In Fig. 6-49, a 49 kg rock climber is climbing a chimney. The coefficient of static friction between her shoes and the rock is 1.2; between her back and the rock is 0.80. She has reduced her push against the rock until her back and her shoes are on the verge of slipping. (a) Draw a free-body diagram of her. (b) What is the magnitude of her push against the rock? (c) What fraction of her weight is supported by the frictional force on her shoes?
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