Question

❤Hello!!
everyone ❤

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state and explain with examples how friction can help the cause of motion in certain situations.
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#DIYA✌✌

Answer 1

Heya....

Yes, it is said that friction is a neccessary evil.

If there was'nt friction we would'nt be able to move !!

Friction has its own advantages and disadvantages. It can cause a lot of harm like wearing of tyres, shoes, machines etc.

without the help of friction, nothing will stop and always be in motion. Eg- If there is no friction, then we always be in walking(a kind of motion) and we cannot stop Evan for a second.

@skb

Answer 2

ANSWER :

❇ FRICTION = Whenever a body moves or tends to move over the surface of another body, a force comes into play which acts parallel to the surface of contact and opposes the relative motion. This opposing force is called FRICTION.

EXAMPLE :

❇ Consider a wooden block placed on a horizontal surface. Give it a gentle push. The block slides through a small distance and then comes to rest. According to NEWTON'S SECOND LAW, a retarding force must be acting on the block. This opposing force is friction.

The force of friction always acts tangential to the surfaces in contact and in a direction opposite to the surfaces in contact and in a direction opposite to the direction of ( relative) motion of the body.