(Answered) A car of mass 100 kg moving on a horizontal road with a

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A car of mass 100 kg moving on a horizontal road with a steady velocity of 10 m/s has a total frictional on it of 400N. Find the power due to the engine.

A car now climbs a hill an angle of 8° to the horizontal. Assuming frictional force stays same what engine power is needed to keep the car moving at Km s-1.

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