1. Understand the Concepts

* Newton's Second Law: The net force acting on an object is equal to its mass times its acceleration (F = ma).

* Constant Acceleration Kinematics: We can use kinematic equations to relate initial velocity (v₀), final velocity (v), acceleration (a), and displacement (Δx).

2. Determine the Acceleration

* We know:

* v₀ = 15.0 m/s (initial velocity)

* v = 0 m/s (final velocity, the car comes to a halt)

* Δx = 57.0 m (distance)

* We need to find 'a' (acceleration).

We can use the following kinematic equation:

v² = v₀² + 2aΔx

* Rearranging to solve for 'a':

a = (v² - v₀²) / (2Δx)

* Plugging in the values:

a = (0² - 15.0²) / (2 * 57.0)

a ≈ -1.97 m/s² (The acceleration is negative because it's in the opposite direction of the car's motion)

3. Calculate the Net Force

* Now we know:

* m = 1450 kg (mass)

* a = -1.97 m/s² (acceleration)

* Using Newton's Second Law (F = ma):

F = (1450 kg) * (-1.97 m/s²)

F ≈ -2856.5 N

Answer:

The magnitude of the horizontal net force required to bring the car to a halt is approximately 2856.5 N. The negative sign indicates that the force is in the opposite direction of the car's motion.