Question

Which of the following statements is true?
1 Friction is a force that occurs only due to the gravity of the Earth.
2 Friction is a force that only occurs when solids move relative to each other.
3 Friction is a force that occurs when any two bodies in contact move relative to each other.
4 Friction is a force that occurs when any two rough surfaces come into contact with each other.

Answer 1

Answer:

Friction is a force that occurs when any two bodies in contact move relative to each other.

Answer 2

Answer:

hii bro..

1.friction is a force that occurs only due ti the gravity of the Earth.