Question

Write 'True' or 'False'.
1. Force of friction is a contact force.
2. Friction causes wear and tear of the surfaces
of contact of the bodies.
3. Sliding friction is always somewhat greater
than static force.
4. Air and fluids do not cause any friction
5. Friction is desirable as well as undesirable
Ancare​

Answer 1

Answer:

1,3,5 is the true answer I think

Answer 2

Answer:

1. True

2. True

3. True

4. False

5. True

Explanation:

hope it will help you please mark as brainlist