Find the mass of the body if, when moving on a surface with a friction coefficient of 0.04, the friction force is 16N.

univerkov | June 1, 2021 | education

Initial data: μ (coefficient of friction of the body against the surface) = 0.04; Ftr. (friction force value) = 16 N.

Reference values: g (acceleration due to gravity) ≈ 10 m / s2.

The mass of the body can be expressed from the formula for calculating the friction force: Ftr. = μ * N = μ * m * g, whence m = Ffr. / (μ * g).

Let’s perform the calculation: m = 16 / (0.04 * 10) = 40 kg.

Answer: Body weight is 40 kilograms.

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