An athlete weighing 80 kg lifted a barbell weighing 150 kg. with what force does he press on the floor?

To calculate the force with which the athlete, after lifting the barbell, must press on the floor, we will use the formula: F = P = m * g = (mс + mш) * g.

Variables and constants: mс – the own weight of the athlete (mс = 80 kg); msh – the mass of the lifted rod (mw = 150 kg); g – acceleration due to gravity (g ≈ 10 m / s2).

Calculation: F = (mc + mw) * g = (80 + 150) * 10 = 230 * 10 = 2.3 * 10 ^ 3 H = 2.3 kN.

Answer: After lifting the barbell, the athlete’s pressure on the floor will be 2.3 kN.



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