When a car accelerates gradually (no squealing tires), is the friction between tires and road kinetic or static? When a car accelerates gradually (no squealing tires), is the friction between tires and road kinetic or static?

The the friction between tires and road is kinetic frictional force.

The frictional force that opposes the motion of a moving object is kinetic frictional force, while the frictional force between a horizontal surface and object at rest is known as static frictional force.

The net force on the accelerating car is calculated using the following formula;

where;

Thus, we can conclude that the the friction between tires and road is kinetic frictional force.

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  kinetic friction.    

Explanation:

We know that generally friction are two types

1)Static friction  - When body is in rest condition.The applied force on the body is balanced by static friction force.To move the body we have applied force more than maximum value of static friction.

2)Kinetic friction - When body is moving.

Here given that car is moving that is why the friction force will be kinetic fiction.

Therefore the answer will be kinetic friction.

a. is the answer because they are not shared

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