569_Dynamics 11ed Manual

569_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 17 α 8g 25 r 2 μ k () = a 8 g 25 2 k = Problem 17-86 The slender rod of mass m is released from rest when θ = 0 . At the same instant ball B having the same mass m is released.Will B or the end A of the rod have the greatest speed when they pass the horizontal ? What is the difference in their speeds? Given: 0 45 deg = Solution: At horizontal f 0 deg = Rod mg l 2 cos 1 3 ml 2 = 3 g 2 l cos = ω 2 2 3 g 2 l sin 0 sin f = 3 g l sin 0 sin f = v A l = 3 gl
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