The total resistance to the car's motion is the sum of air resistance and rolling resistance, which gives 800N + 240N = 1040N.
The net driving force on the car is the difference between the driving force and the total resistance to motion, which is 2800N - 1040N = 1760N.
The driving force shortfall is the difference between the net driving force and the gravitational force acting on the car, which is 1760N - 1900N = -140N.
Therefore, the car's driving force is 140N less than what is needed to overcome the total resistance and gravity acting on it.
The tire have a driving force of 2800N.
The air resistance is 800N and the total rolling resistance is 240N. The gravitational force is 1900N.
What is the car’s driving force shortfall?
1 answer