How does friction stop something from moving?

Answer 1

There are normally four forces acting on a body. They are friction force, applied force, weight and gravity.

Friction is an opposing force that creates resistance to a body causing it to slow down.

e.g

If we have a car accelerating 1.55ms-2 and it weighs about 1400kg with its passenger and fuel. The applied force would be 2100N. The air resistance or drag force and the friction of the tries between the surface of the road has generated about 19500N. If we take away the friction force from the applied force, 2100N - 19500N = 600N of applied force to keep the car going but remember that this friction force will gradually slow down the car.

Answer 2

Friction occurs when two surfaces come into contact while moving against each other, creating resistance. This resistance opposes the movement and slows down or stops the object from moving further. The rougher the surfaces and the heavier the object, the more friction is generated, making it harder for the object to keep moving.