Consider the following statements:
Statement 1: Friction depends on the smoothness of the surfaces.
Statement 2: All types of friction (static, sliding, rolling) can be completely eliminated.
Statement 3: Lubricants are used to reduce friction.
1
Only 1 and 3 are correct.
2
Only 2 and 3 are correct.
3
All are correct.
4
Only 1 is correct.