This time the pendulum is 2.34 m long. Suppose you start with the pendulum hanging vertically, at rest. You then give it a push so that it starts swinging with a speed of 1.56 m/s. What maximum angle (in degrees) will it reach, with respect to the vertical, before falling back down?     15.0 degrees     33.7 degrees     26.2 degrees     18.7 degrees

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter2: Newtonian Mechanics-single Particle
Section: Chapter Questions
Problem 2.52P: A particle of mass m moving in one dimension has potential energy U(x) = U0[2(x/a)2 (x/a)4], where...
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This time the pendulum is 2.34 m long. Suppose you start with the pendulum hanging vertically, at rest. You then give it a push so that it starts swinging with a speed of 1.56 m/s. What maximum angle (in degrees) will it reach, with respect to the vertical, before falling back down?
   
15.0 degrees
   
33.7 degrees
   
26.2 degrees
   
18.7 degrees
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