Solve the all parts of following problem given below:
Problem: 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.
Part A: What are the drag forces at 80 km/h and 109 km/h for a Toyota Camry? (Drag area = 0.70 m2 and drag coefficient = 0.28).
at 80 km/h = _____ N
at 109 km/h = _____ N
Part B: What are the drag forces at 80 km/h and at 109 km/h for a Hummer H2? (Drag area = 2.44 m2 and drag coefficient = 0.57).
at 80 km/h = ______ N
at 109 km/h = ______ N
I need help to determine the drag forces at 80 km/h and at 109 km/h for a Hummer.