A uniform rod of mass M and length L is pivoted at one end and hangs as

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A uniform rod of mass M and length L is pivoted at one end and hangs as in Figure so that it is free to rotate without friction about its pivot. It is struck by a horizontal force F₀ for a short time Δt at a distance x below the pivot as shown.

(a) Show that the speed of the center of mass of the rod just after being struck is given by v₀ = 3F₀xΔt/2ML.

(b) Find the force delivered by the pivot, and show that this force is zero if x = 2L/3.

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Jun 29, 2011 03:17 AM

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A uniform rod of mass M and length L is pivoted at one end and hangs as

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a The torque due to F 0 is F 0 x I ML 2 3 Thus 3 F 0 x ML 2 and t 3 F 0 x t ML 2 ...View the full answer

Fundamentals of Ethics for Scientists and Engineers

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