Shoes made for the sports of boulderingand rock climbing are designed to provide a great deal of frictionbetween the foot and the surface of the ground. Such shoes on smoothrock might have a coefficient of static friction of 1.2 and a coefficient ofkinetic friction of 0.90. For a person wearing these shoes, what’s the maximum angle (with respect to the horizontal) of a smooth rock that can be walked on without slipping? (a) 42°; (b) 50°; (c) 64°; (d) larger than 90°.
Shoes made for the sports of boulderingand rock climbing are designed to provide a great deal of frictionbetween the foot and the surface of the ground. Such shoes on smoothrock might have a coefficient of static friction of 1.2 and a coefficient ofkinetic friction of 0.90. For a person wearing these shoes, what’s the maximum angle (with respect to the horizontal) of a smooth rock that can be walked on without slipping? (a) 42°; (b) 50°; (c) 64°; (d) larger than 90°.
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Shoes made 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. Such shoes on smooth
rock might have a coefficient of static friction of 1.2 and a coefficient of
kinetic friction of 0.90. For a person wearing these shoes, what’s the maximum angle
(with respect to the horizontal) of a smooth rock that can be walked on
without slipping? (a) 42°; (b) 50°; (c) 64°; (d) larger than 90°.
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