How to find the coefficient of friction if the force is known = 100 N, m = 10 kg?
| February 17, 2021 | education
The friction force of a body can be calculated using the formula:
Ftr. = μ * N, where Ftr. Is the effective friction force (Ftr. = 100 N), μ is the coefficient of friction (μ = 0.2), N is the support reaction force (for a horizontal surface N = Ft = m * g, where m is the body mass (m = 10 kg), g – free fall acceleration (we take g = 10 m / s²)).
Let us express and calculate the coefficient of friction:
Ftr. = μ * N = μ * Fт = μ * m * g.
μ = Ftr. / (m * g) = 100 / (10 * 10) = 1.
Answer: The coefficient of friction is 1.
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