The force that will decrease if the surface of a ramp is made smoother is friction.
What is frictional force?
This is a contact force that resist the motion between two surfaces in contact.
Methods of reducing friction between surfaces in contact;
- The use of ball bearing.
- Applying grease between the two surfaces.
- Polishing the surface.
Thus, we can conclude that the force that will decrease if the surface of a ramp is made smoother is friction.
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