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A cyclist and her bicycle have a combined mass of 75 kg. she coasts down a road inclined at 2.0 degrees with the horizontal at 4.0 m/s and coasts down another road inclined at 4.0 degrees at 8.0 m/s. she then holds on to a moving vehicle and coasts on a level road. what power must the vehicle expend to maintain her speed at 3.0 m/s? assume that the force of air resistance is proportional to her speed, and assume that other frictional forces remain constant?
thanks.. if anyone could solve this, it'd be great help
thanks.. if anyone could solve this, it'd be great help