652_Dynamics 11ed Manual

652_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 19 Problem 19-29 A thin rod having mass M is balanced vertically as shown. Determine the height h at which it can be struck with a horizontal force F and not slip on the floor. This requires that the frictional force at A be essentially zero. Given: M 4kg = L 0.8 m = Solution: Ft M ω L 2 = Fth M L 2 3 = Thus M L 2 hM L 2 3 = h 2 3 L = h 0.53 m = Problem 19-30 The square plate has a mass M and is suspended at its corner A by a cord. If it receives a horizontal impulse I at corner B , determine the location y' of the point
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