The speed of a motor boat can be expressed and calculated from the power formula:
N = F * V, where N is the power of the motor boat engine (N = 5 kW = 5 * 103 W), F is the thrust force developed by the engine (F = 100 N), V is the required speed of the motor boat.
V = N / F.
Let’s do the calculation:
V = 5 * 103/100 = 50 m / s.
Answer: The motor boat is moving at a speed of 50 m / s.
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