Final answer:
To calculate the change in momentum of the car, use the formula: Change in momentum = Initial momentum - Final momentum. The initial momentum can be calculated using the formula: Initial momentum = mass × initial velocity. The final momentum is 0 since the car comes to a complete stop.
Step-by-step explanation:
To calculate the change in momentum, we first need to calculate the initial momentum and final momentum of the car. The initial momentum can be calculated using the formula:
Initial momentum = mass × initial velocity
The final momentum can be calculated using the formula:
Final momentum = mass × final velocity
Since the car comes to a complete stop, the final velocity is 0 m/s. Therefore, the final momentum is:
Final momentum = mass × 0 m/s = 0
The change in momentum is the difference between the initial momentum and the final momentum:
Change in momentum = Initial momentum - Final momentum