What kind of work does a crane perform when lifting a 10 t load to a height of 10 m?

The work that the crane used was supposed to perform is equal to the change in the potential energy of the lifted load and it can be calculated by the formula: A = ΔEp = m * g * h, where m is the mass of the load (m = 10 t, in the SI system m = 10 * 10 ^ 3 kg); g – acceleration due to gravity (reference value, g ≈ 10 m / s2); h – lifting height (h = 10 m).

Let’s make a calculation: A = m * g * h = 10 * 10 ^ 3 * 10 * 10 = 1 * 10 ^ 6 J (1 MJ).

Answer: The work of the crane used is 1 MJ.