A pendulum is constructed by attaching a small metal ball to one end of a string...
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A pendulum is constructed by attaching a small metal ball to one end of a string of length L = 1.15 m that hangs from the ceiling, as shown in the figure. The ball is released when it is raised high enough for the string to make an angle of 0 = 30.0 with the vertical. With what speed u is the ball moving at the bottom of its swing? Does the mass of the ball affect the answer? v = L Yes, because the work done on the ball by the gravitational force depends on the mass. No, because the ball's speed is independent of its mass. No, because the change in string tension counteracts the change in mass. Yes, because changing the mass changes the ball's inertia. v = ? m/s A pendulum is constructed by attaching a small metal ball to one end of a string of length L = 1.15 m that hangs from the ceiling, as shown in the figure. The ball is released when it is raised high enough for the string to make an angle of 0 = 30.0 with the vertical. With what speed u is the ball moving at the bottom of its swing? Does the mass of the ball affect the answer? v = L Yes, because the work done on the ball by the gravitational force depends on the mass. No, because the ball's speed is independent of its mass. No, because the change in string tension counteracts the change in mass. Yes, because changing the mass changes the ball's inertia. v = ? m/s
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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