Question

A car accelerates uniformly from rest to a speed of 20 m/s during a period of 5.0s and then remains at this constant velocity for the next 4.0s. the brakes are then applied,bringing it uniformly to rest in a final 3.0 s

what is the final speed of the car?

Answer 1

The final speed of the car is 0 m/s, as it comes to rest after the brakes are applied, according to the given scenario.

Step-by-step explanation:

The question involves a scenario where a car accelerates uniformly, travels at constant velocity, and then decelerates uniformly to rest. According to the given information, the final speed of the car is 0 m/s because it comes to rest after the brakes are applied. To find other details about the car's motion, such as total distance traveled or average velocity, one would need to apply the kinematic equations of motion, but these are not required to determine the final speed.