Friction Calculator
Find the friction force from the coefficient of friction and the normal force — on level ground, on a slope, or from a known normal force.
Maximum static friction
29.4199 N (6.61387 lbf)
- Normal force
- 98.0665 N (22.0462 lbf)
Uses standard Earth gravity, 9.80665 m/s².
Show the work
Normal force on level ground
N = m × g
10 × 9.80665 = 98.0665 N (22.0462 lbf)
Friction = μ × normal force
F = μ × N
0.3 × 98.0665 = 29.4199 N (6.61387 lbf)
How it works
F = μN; on level ground N = mg; on a slope N = mg cos θ and gravity pulls down the slope with mg sin θ
Questions
- How does the friction calculator work?
- F = μN; on level ground N = mg; on a slope N = mg cos θ and gravity pulls down the slope with mg sin θ.
- What do I need to enter?
- Coefficient of friction (μ), Friction type, Normal force from, Mass, Mass unit, Slope angle, Normal force, Normal force unit. Optional fields can be left blank.
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