# A body weighing 3 kg moves evenly along a horizontal plane. The coefficient of sliding

August 28, 2021 | education

| **A body weighing 3 kg moves evenly along a horizontal plane. The coefficient of sliding friction of the body over the surface is 0.2. The friction force is**

To find the value of the friction force that should act on a given moving body, we use the formula (we take into account that for a horizontal surface N = Ft = m * g): Ffr = μ * N = μ * m * g.

Constants and variables: μ – coefficient of sliding friction (μ = 0.2); m – body weight (m = 3 kg); g – acceleration due to gravity (g ≈ 10 m / s2).

Calculation: F = μ * m * g = 0.2 * 3 * 10 = 6 N.

Answer: The friction force is 6 N.