Question

what are the causes of friction? class 11th​

Answer 1

Answer:

force of frict ion can increase or decrease the velocity or speed of the object no matter of what is speed

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Answer 2

Answer:

Friction is a general observation that when you try to slide a heavy box across the floor , the box does not move at all unless you push it with a certain minimum force. This means that there exists a certain opposition to the motion of box on the ground. This opposition must be acting opposite to the direction in which you try to move the block. This opposing force acts between the surface of box and ground and is called force of friction