A pendulum is constructed by attaching a small metal ball to one end of a string of length ?=1.40 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 ?=20.0∘ with the vertical. With what speed ? is the ball moving at the bottom of its swing? (in m/s) Does the mass of the ball affect the answer? (Choose one) -No, because the ball’s speed is independent of its mass. -Yes, because changing the mass changes the ball's inertia. -No, because the change in string tension counteracts the change in mass. -Yes, because the work done on the ball by the gravitational force depends on the mass.

A pendulum is constructed by attaching a small metal ball to one end of a string of length ?=1.40 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 ?=20.0∘ with the vertical. With what speed ? is the ball moving at the bottom of its swing? (in m/s) Does the mass of the ball affect the answer? (Choose one) -No, because the ball’s speed is independent of its mass. -Yes, because changing the mass changes the ball's inertia. -No, because the change in string tension counteracts the change in mass. -Yes, because the work done on the ball by the gravitational force depends on the mass.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 49P: In Figure P1.49, find (a) the side opposite , (b) the side adjacent to . (c) cos , (d) sin , and (c)...

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