Rotating bearings.
when machines are used
never
false
True -It's "False"!
Friction.
When a tire or anything needed to move matter requires traction.
when machines are used
by oiling
when machines are used
never
false
True -It's "False"!
Friction.
cheese burger.
false; usually it takes more force to overcome static friction which is higher
friction is useful for: you to walk It is needed for braking Can be used to produce heat
so you dont get tackled