Factors Affecting Kinetic (Sliding) Friction
Control variables: normal force, surface roughness, and contact area
1. Normal Force
0 weights
2. Roughness
Smooth Wood
3. Contact Area
Flat (Large Area)
F = μN
Stationary
At constant speed: F_pull = f = μN
Control Panel
0
01234
Principle
Current μ
0.3
Current N
9.8 N
At constant speed: F_pull = f = μN