Задача 10144.

The rocket, the initial mass of which is m0=1.5 kg, is launched vertically upwards. Determine the acceleration with which the rocket moves through t = 5 s after launch, if the fuel consumption rate is 0.2 kg / s, and the relative exit velocity of the combustion products is u = 80 m / s. Air resistance is ignored.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.