What is the work done by a dump truck in 30 minutes if it develops a power of 25 kW when transporting cargo?

These tasks: t (the duration of the dump truck) = 30 min (in the SI system t = 1800 s); N (the power that the dump truck developed during operation) = 25 kW (25 * 10 ^ 3 W).

The work that the dump truck should have done in 30 minutes is calculated by the formula: A = N * t.

Let’s calculate: A = 25 * 10 ^ 3 * 1800 = 45 * 10 ^ 6 J (45 MJ).

Answer: In 30 minutes, the dump truck completed work of 45 MJ.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.