Motor physics

A car is traveling at 98 km/h on the highway. The pulling power of the motor is 6 kN.

Find the engine power in kW.

Correct answer:

P =  163.3 kW

Step-by-step explanation:

$$\begin{gathered} v=98km\mathrm{/}h=27.22m\mathrm{/}s \\ F=6kN \\ W=Fs \\ P=W\mathrm{/}t=Fs\mathrm{/}t=Fv \\ P=6\cdot 27.22=163.3\text{ kW} \end{gathered}$$

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