http://imgur.com/qF8jWq8 The magnitude of the difference | F 1 - F 2 | is ______

Question

                    http://imgur.com/qF8jWq8                 

                

                    
                

                

                                     The magnitude of the difference | F1 - F2 | is _______

A tire balance weight is a piece of lead with a mass of 61 grams. The total diameter of the wheel, including the tire, is 24.9 inches. The weight is mounted on the rim, and the tire wall is 2.8 inches tall. After the weight is installed, the owner drives the car on the highway at 64 miles per hour. What is the magnitude of the difference between the two net forces experienced by the weight, | F1 - F2 | Force F1 is the net force on the weight when it is passing through its lowest position on the wheel, while force F2 is the net force on the weight when it is passing through its highest position on the wheel rim. In your calculation, use 1 inch = 2.54 cm. The magnitude of the difference | F1 - F2 | is

Explanation / Answer

v = 64*22/15 = 93.87 ft/sec
r = 12.45 - 2.8 = 9.65" = 0.804 ft
m = 61g/14594 = 4.17979E-3 slugs

Centripetal acceleration Ac = v

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