A 25-ton (50,000-lb) truck coasts down a steep 7% mountaingrade without brakes, as shown
Chapter 9, Problem 9.72(choose chapter or problem)
A 25-ton (50,000-lb) truck coasts down a steep 7% mountaingrade without brakes, as shown in Fig. P9.72. The trucks ultimatesteady-state speed, V, is determined by a balance between weight,rolling resistance, and aerodynamic drag. Determine V if the rollingresistance for a truck on concrete is 1.2% of the weight and thedrag coefficient based on frontal area is 0.76.
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