Question

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

Answer 1

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.