What kind of work does an athlete do when lifting a barbell weighing 200 kg from the ground to a height of 2 m?

Let’s write down what we have given and what needs to be found
1. Let us write down the formula for determining the work, where F is the applied force, S is the displacement.
2. In our case, the applied force is equal to the force of attraction, where m is the mass, g is the acceleration of gravity on the surface of the Earth, equal to 9.8 m / s2.
3. Moving is our lifting height.
4. Substituting all this into the formula for determining the work, we get the following formula.
5. Substituting the numerical values, we get 3920 J.



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