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The static friction...

The static friction

A

increases linearly

B

is constant

C

zero

D

varies parabolically

Text Solution

Verified by Experts

The correct Answer is:
A
increases linearly
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In the section 3.7.3 (Banking of road) we have not included the friction exerted by the road on the car. Suppose the coefficient of static friction between the car tyre and the surface of the road is mu_s , calculate the minimum speed with which the car can take safe turn? When the car takes turn in the banked road, the following three forces act on the car. (1) The gravitational force mg acting downwards (2) The normal force N acting perpendicular to the surface of the road (3) The static frictional force f acting on the car along the surface.

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