617_Dynamics 11ed Manual

617_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 18 Solution: 0 Mgd + 0 1 2 Mk A 2 ω 2 2 + = 2 2 gd k A 2 = 2 2.83 rad s = *Problem 18-36 The soap-box car has weight W c including the passenger but excluding its four wheels. Each wheel has weight W w radius r , and radius of gyration k , computed about an axis passing through the wheel’s axle. Determine the car’s speed after it has traveled distance d starting from rest. The wheels roll without slipping. Neglect air resistance. Solve using conservation of energy. Given: W c 110 lb = d 100 ft = W w 5lb = θ 30 deg = r 0.5 ft = g 32.2 ft s 2 = k 0.3 ft = Solution: 0 W c 4 W w + () d sin () + 0 1 2 W c 4 W w + g v 2 + 1 2 4 W w g k 2
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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