Alight truck weighs 3,300 lb and is rated at 30 miles per gallon for 52 mph highway driving on level ground. Under those conditions, the engine must overcome air resistance, rolling resistance, and other sources of friction. Give your an (a) The coefficient of drag is 0.55 at 52 mph, and the truck's frontal area is 28 ft*. What is the drag force on the truck? (Express your answer using three significant figures.) Fo - OIb (b) How much power must the engine produce at 52 mph just to overcome air resistance?

Alight truck weighs 3,300 lb and is rated at 30 miles per gallon for 52 mph highway driving on level ground. Under those conditions, the engine must overcome air resistance, rolling resistance, and other sources of friction. Give your an (a) The coefficient of drag is 0.55 at 52 mph, and the truck's frontal area is 28 ft*. What is the drag force on the truck? (Express your answer using three significant figures.) Fo - OIb (b) How much power must the engine produce at 52 mph just to overcome air resistance?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A truck having projected area of 6.5 m² and travelling at 72 km/h has a total resistance of 1.6 kN. Out of this resistance, 30% is due to rolling, 20% due to surface friction and rest is due to drag. Calculate the coefficient of drag if specific weight of air is 12 N/m^3.
A new sports car has a drag corfficient of 0.30 and a frontal area of 18.5 ft<, and is traveling at 90 mi/h. How much power (in ft-lb/s) is required to overcome aerodynamic drag if air density is 0.002378 slugs/ft?
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