- #1
MBBphys
Gold Member
- 55
- 0
Homework Statement
The question on this paper is as follows: 'Why is it vital that there is a friction force that opposes motion when two surfaces try to slide across one another?'.
My response was: 'If there was no friction, something will keep on going in one direction if no other forces act on it'.
My teacher has marked this as incorrect and has commented: 'Why will an object not move without friction?'.
To me that comment does not make sense; objects would move without friction! So what does she mean? Thank you
Homework Equations
N/A
The Attempt at a Solution
N/A