Question #8e21a
1 Answer
Explanation:
Constant speed of Car A
Let us consider Car B first.
It enters the acceleration lane at a speed
It accelerates uniformly and enters the main traffic lane after traveling
Using the following kinematic equation to obtain acceleration
Dividing both sides by
To calculate the final speed at the time of entering the main traffic we use the following kinematic equation
It then continues to accelerate at the same rate until it reaches a speed of
Time taken to reach top speed is calculated from the kinematic equation
During this period of acceleration average speed
Distance traveled in the main traffic lane
Now Car A
Distance traveled during this time period
As the car A was