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Divide the example problem 8.3 in chapter 8 using the 4.2 section described in textbook into the format “Given” ,“Find” , and “Solution”.
Answer to Problem 25P
The example problem 8.3 in chapter 8 is divided using the 4.2 section described in textbook into the format “Given” ,“Find” , and “Solution”, and the total distance travelled by the car is
Explanation of Solution
Given:
Car accelerates at speed of
The car moves with constant speed of
The car decelerates to a full stop in 10 seconds.
Find:
Find the total distance travelled by the car and also find its average speed over this distance.
Solution:
The car speed is linearly increased from zero to
Therefore, the average speed of the car is
Formula to determine the distance travelled during this period
For the next 30 minutes (1800 s), the car travels with a constant speed of
Formula to determine the distance travelled during this period
For the last 10 sec, the car decelerates at a constant speed of
Therefore, the average speed of the car during the last 10 sec is also
Formula to determine the distance travelled during this period
Formula to determine the total distance covered by the car is,
Convert the unit of total distance from m to km
Formula to determine the average speed of the car for the entire duration of the travel is,
Convert the unit of average speed from
Conclusion:
Hence, the example problem 8.3 in chapter 8 is divided using the 4.2 section described in textbook into the format “Given” ,“Find” , and “Solution”,
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