B. you are approaching a stoplight moving with a velocity of 42.0 m/s. the light turns
yellow, and you apply the brakes and skid to a stop. if your acceleration is 10.0 m/s2,
determine the displacement of the car during the skidding process

displacement of the car will be 88.2 m

Explanation:

As we know that initial speed of the car is given as

after complete stop the final speed of the car is

now the deceleration caused due to applied brakes is given as

now by kinematics we will have

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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