To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). the density of air is 1.2 kg/m3.
(a) what are the drag forces in newtons at 77 km/h and 106 km/h for a toyota camry? (drag area = 0.70 m2 and drag coefficient = 0.28.) at 77 km/h n at 106 km/h n
(b) what are the drag forces in newtons at 77 km/h and at 106 km/h for a hummer h2? (drag area = 2.44 m2 and drag coefficient = 0.57.) at 77 km/h n at 106 km/h n supporting materials