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To maintain a constant speed, the force provided by a car’s engine must equal the drag...

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). Assume that the drag coefficient for a Toyota Camry is 0.28, while for a Hummer it is 0.64. The density of air at this temperature is 1.21 kg/m3.

s1 = 62 km/h
s2 = 110 km/h

A) What is the drag force at 62 km/h for a Toyota Camry? (Drag area is 0.70 m2)

B) What is the drag force at 110 km/h for a Toyota Camry? (Drag area is 0.70 m2)

C) What is the drag force at 62 km/h for a Hummer H2? (Drag area is 2.44 m2)

D) What is the drag force at 110 km/h for a Hummer H2? (Drag area is 2.44 m2)

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