Question: Figure 5 shows the truck with deflector on top of the truck. The aerodynamic drag on a truck can be reduced by the use

Figure 5 shows the truck with deflector on top of the truck. The aerodynamic drag on a truck can be reduced by the use of appropriate air deflectors with Cd = 0.70. Drag coefficient without deflector is 0.95. Height of front truck is 350 cm and width 300 cm. Compare the differences of power needed at a highway speed of 90 km/h at temperature 30C.

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To compare the differences in power needed at a highway speed of 90 kmlh with and without the deflector we need to calculate the drag forces for both ... View full answer

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