Answer: To calculate the acceleration of the car, we can use the equation:
acceleration = (final velocity - initial velocity) / time
Plugging in the values given in the question, we get:
acceleration = (25 m/s - 5 m/s) / 10 s = 2 m/s^2
To calculate the resultant force exerted on the car, we can use the equation:
resultant force = mass * acceleration
Plugging in the values given in the question, we get:
resultant force = 800 kg * 2 m/s^2 = 1600 N
This is the force that must be exerted on the car to accelerate it from 5 m/s to 25 m/s in 10 s.