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.

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Given: We = 110 lb d = 100 ft Ww = 5 lb r = 0.5 ft k = 0.3 ft 8 = 30 deg 8 = 32.2 ft "NE