A 1790-kg car is traveling with a speed of 15.6 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 78.4 m?

A 1850-kg car is traveling with a speed of 12.6 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 34.9 m?