Find the maximum speed with which a car can turn on a bend without skidding, if radius of bend is 20 m and coefficient of friction between the road and the tyres is 0.4.

Explanation

To find the maximum speed with which a car can turn on a bend without skidding, we can use the following steps:

### Step 1: Identify the forces acting on the car
When a car is turning on a bend, the frictional force between the tires and the road provides the necessary centripetal force to keep the car moving in a circular path. The forces acting on the car include:
- The gravitational force (weight) acting downwards: \( mg \)
- The normal force acting upwards: \( N \)
- The frictional force acting towards the center of the bend: \( f \)

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