A pendulum bob is attached to a string and allowed to swing. Which of the following statements is true with correct reasoning about the magnitude of the force the string exerts on the bob Fs on B and the magnitude of the force Earth exerts on the bob FE on B at the very bottom of the pendulum's swing? ΟΟΟ Ο FS on BFE on B because the bob is moving at a constant speed at that point so the forces exerted on it must be balanced. FS on BFE on B because the string would not be able to support the bob if it were not. FS on BFE on B because the bob is accelerating upward at the bottom of its swing. FS on BFE on B because of Newton's 3rd Law
A pendulum bob is attached to a string and allowed to swing. Which of the following statements is true with correct reasoning about the magnitude of the force the string exerts on the bob Fs on B and the magnitude of the force Earth exerts on the bob FE on B at the very bottom of the pendulum's swing? ΟΟΟ Ο FS on BFE on B because the bob is moving at a constant speed at that point so the forces exerted on it must be balanced. FS on BFE on B because the string would not be able to support the bob if it were not. FS on BFE on B because the bob is accelerating upward at the bottom of its swing. FS on BFE on B because of Newton's 3rd Law
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.1CYU: Check Your Understanding The U.S. Air Force uses “10gs” (an acceleration equal to 109.8m/s2 ) as the...
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