If the coefficient of static friction between shoes of a runner and the track is 0.85, the greatest acceleration that can be generated by the runner is (here g gravitational acceleration)
(A) 1.85 g
(B) g
(C) 0.85 g
(D) 0.15 g
Correct option (C) 0.85 g
Explanation:
The maximum force of static friction is μ times the normal force on an object. Here, μ is known as coefficient of static friction.