A car of mass $$\(1400 \mathrm{~kg}\)$$ is moving along a straight horizontal road against a resistance of magnitude $$\(350 \mathrm{~N}\)$$. Find, in kW, the rate at which the engine of the car is working when it is travelling at a constant speed of $$\(20 \mathrm{~m} \mathrm{~s}^{-1}\)$$ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

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