A 2-kg ball attached to a string of length 1.5 m moves in a horizontal circle as
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A 2-kg ball attached to a string of length 1.5 m moves in a horizontal circle as a conical pendulum (Figure). The string makes an angle q = 30o with the vertical.
(a) Show that the angular momentum of the ball about the point of support P has a horizontal component toward the center of the circle as well as a vertical component, and find these components.
(b) Find the magnitude of dL/dt, and show that it equals the magnitude of the torque exerted by gravity about the point ofsupport.
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Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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