The car moves evenly at a speed of 72 km / h What work will it do in 10 seconds if the thrust force

The car moves evenly at a speed of 72 km / h What work will it do in 10 seconds if the thrust force of its motor is 2 thousand N?

Machine power can be calculated using the formula:
N = A / t = F * V, where A is the work done by the machine (N), t is the time of movement of the machine (t = 10 s), F is the traction force of the machine (F = 2000 N), V is the speed of the machine ( V = 72 km / h = 72 * 1000/3600 m / s = 20 m / s).
Let us express and calculate the work done by the machine:
A = F * V * t = 2000 * 20 * 10 = 400000 J = 0.4 * 10 ^ 6 J = 0.4 MJ.
Answer: The machine will do a job of 0.4 MJ.