With what force should the sled be pulled so that it moves evenly if the coefficient of friction is 0.2? Sleigh weight 2 kg.

To determine the required force applied to the sleigh used, we use the equality: m * a = 0 (uniform motion) = F – Ffr, whence F = Ffr = μ * m * g.

Values of constants and variables: μ – coefficient of friction (μ = 0.2); m is the mass of the sleigh used (m = 2 kg); g – acceleration due to gravity (g ≈ 10 m / s2).

Calculation: F = μ * m * g = 0.2 * 2 * 10 = 4 N.

Answer: The sled used needs to be pulled with a force of 4 N.