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585_Dynamics 11ed Manual

# 585_Dynamics 11ed Manual - frictional forces it exerts on...

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Engineering Mechanics - Dynamics Chapter 17 Solution: Guesses T 1lb = a Gt 1 ft s 2 = α 1 rad s 2 = Given F W g a Gt = 2 TW 0 = Fc W g k G 2 α T a Gt α Find Ta Gt , α () = a Gt 3.58 ft s 2 = α rad s 2 = T 90.0 lb = Problem 17-107 A girl sits snugly inside a large tire such that together the girl and tire have a total weight W , a center of mass at G , and a radius of gyration k G about G . If the tire rolls freely down the incline, determine the normal and frictional forces it exerts on the ground when it is in the
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Unformatted text preview: frictional forces it exerts on the ground when it is in the position shown and has an angular velocity ω . Assume that the tire does not slip as it rolls. Given: W 185 lb = b 2 ft = k G 1.65 ft = a 0.75 ft = θ 20 deg = 6 rad s = Solution: Guesses N T 1 lb = F T 1 lb = 1 rad s 2 = 583...
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