What is the thrust force of the boat motor, moving at a speed of 5 m / s, if its power is 2 kW.

Given: N = 2 kW, V = 5m / s.
SI system: let’s convert the power from kW to W – N = 2 * 10 ^ 3 W.
Decision:
Outboard motor power:
N = A / t = F * S / t = F * V, where N is the constant power of the outboard motor, F is the thrust force (N), V is the boat speed.
Let us express and calculate the thrust force:
F = N / V = (2 * 10 ^ 3) / 5 = 400 N.
Check: H = W / (m / s) = (N * m / s) / (m / s) = N.
Answer: The thrust force is 400 N.