SHOW ALL WORK , PLEASE , THANK YOU A truck travels 60 mph on a smooth horizontal

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SHOW ALL WORK , PLEASE , THANK YOU

A truck travels 60 mph on a smooth horizontal road. The frontal area of the truck is 100 square feet. The air temperature is 60 degrees F and standard atmospheric conditions exist. The drag coefficient on the truck is 0.66. Using the equation below for the drag force on the truck. Determine the power output required to maintain the constant speed with no wind. Assume a constant power output, determine the velocity of the truck if (a) the truck is traveling against a 30 mph wind and (b) the truck is traveling with a 30 mph wind. FD = 1/2* rho *V2*CD*A FD = drag force rho = density of the fluid V = velocity CD = drag coefficient A = Area

Explanation / Answer

power is 10.376 KW

(a) V1 = 41.8 mph

(b) V2 = 81.45 mph

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