The tractor pulled a pile weighing 20 tons along the ground to the bridge construction site.
| March 4, 2021 | education
The tractor pulled a pile weighing 20 tons along the ground to the bridge construction site. Find the coefficient of friction if the tractor pulling force is 2 kN.
To find the coefficient of friction of the pile on the ground, we will use the equality (we will assume that the movement of the pile is uniform): Ftyag = Ftr = μ * m * g, whence μ = Ftyag / (m * g).
Variables and constants: Ftyag – traction force of the tractor used (Ftyag = 2 kN = 2000 N); m is the mass of the pile being moved (m = 20 t = 2 * 10 ^ 4 kg); g – acceleration due to gravity (g ≈ 10 m / s2).
Calculation: μ = Ftyag / (m * g) = 2000 / (2 * 10 ^ 4 * 10) = 0.01.
Answer: The coefficient of friction of the pile being moved on the ground is 0.01.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
