7. The sports car and the driver have a total mass of 2500kg. The projected front area of the car is 0.78m?. The car is traveling at50km/h when the driver

puts the transmission into neutral and allows the car to freely coast until after 150s its speed reaches 40km/h. Determine the drag coefficient for the car, assuming its values is constant. Neglect rolling and other mechanical resistance. (Hint: Watch"Chapter 9-Finding CD Value.mp4")