The crane lifts 2 m3 of cement slurry to a height of 4 m, the density of which is 2036 kgm3,

The crane lifts 2 m3 of cement slurry to a height of 4 m, the density of which is 2036 kgm3, (g = 10 ms2). What kind of work does a crane do?

Task data: h (height of the solution lifting) = 4 m; V (volume of cement slurry) = 2 m3.

Constants: according to the condition ρ (cement slurry density) = 2036 kg / m3; g (acceleration due to gravity) = 10 m / s2.

The work of the crane used when lifting the cement slurry is determined by the formula: A = ΔEp = m * g * h = ρ * V * g * h.

Let’s make a calculation: A = 2036 * 2 * 10 * 4 = 162 880 J.

Answer: When lifting 2 m3 of cement mortar with a crane, work was performed at 162 880 J.