Concept explainers
Find the frontal area of the car in SI unit and U.S. Customary unit.
Answer to Problem 50P
The frontal area of the car in inches is
Explanation of Solution
Given data:
The height of the car
The width of the car
Formula used:
Formula to calculate the frontal area of the car is,
Here,
Calculation:
Total frontal area:
Formula to calculate the total frontal area of the car is,
Here,
Substitute
Area of the squares in which the parts of the car is not touched:
Refer to the figure 7.50, the height and width of the car is divided as slots. Therefore,
For 1 slot, the height (h) is:
For 1 slot, the width (w) is:
From the figure 7.50, approximately the total number of slots which is not touching the parts of car is 48.
Formula to calculate the area of the squares which is not touched by the parts of car is,
Here,
Substitute
Substitute
The SI unit of the frontal area of the car is,
The U.S. Customary unit of the frontal area of the car is,
Therefore, the frontal area of the car in SI unit and U.S. Customary unit is
Conclusion:
Thus, the frontal area of the car in SI unit, U.S. Customary unit and in inches is
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