A(n) 800 kg drag race car accelerates from

rest to 103 km/h in 1.05 s.
What average net force is exerted on the
car?

change the speed to m/s

force*time=m(vf)
solve for force.

To find the average net force exerted on the car, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration.

Given:
Mass of the car (m) = 800 kg
Time taken (t) = 1.05 s
Final velocity (v) = 103 km/h

First, let's convert the final velocity from km/h to m/s. We know that 1 km/h is equal to 0.2778 m/s.

Final velocity (v) = 103 km/h * 0.2778 m/s = 28.61 m/s

Next, we need to calculate the acceleration of the car. We can use the formula:

Acceleration (a) = (Change in velocity) / (Time taken)

Change in velocity = Final velocity - Initial velocity

Since the car starts from rest, the initial velocity is 0 m/s.

Change in velocity = 28.61 m/s - 0 m/s = 28.61 m/s

Acceleration (a) = 28.61 m/s / 1.05 s = 27.25 m/s^2

Now, we have the mass of the car and its acceleration. We can calculate the average net force using the formula:

Force (F) = Mass (m) * Acceleration (a)

Force (F) = 800 kg * 27.25 m/s^2 = 21,800 N

Therefore, the average net force exerted on the car is 21,800 Newtons.