cbarker
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We are having trouble understanding the concept of question number 13 below: (we figured out the first ones OK)
Base your answers to questions 9 through 13 on the information below.
A manufacturer’s advertisement claims that their 1,250-kilogram (12,300-newton) sports car can accelerate on a level road from 0 to 60 miles per hour (0 to 26.8 meters per second) in 3.75 seconds.
- 9. Determine the acceleration, in meters per second2, of the car according to the advertisement.
- 10. Calculate the net force required to give the car the acceleration claimed in the advertisement. [show all work, including the equation and substitution with units.]
- 11. What is the normal force exerted by the road on the car?
- 12. The coefficient of friction between the car’s tires and the road is 0.80. Calculate the maximum force of friction between the car’s tires and the road. [show all work, including the equation and substitution with units.]
- 13. Using the values for the forces you have calculated, explain whether or not the manufacturer’s claim for the car’s acceleration is possible.
Friction of a car
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Thanks Dan! We appreciate all your resources on A+ Physics ...