**38. A quarterback fires off a pass with the football traveling at a speed of 20 m/s and with a rotational speed of 5 revolutions per second. The mass of the football is 400 g and its rota- tional inertia is 2 x 10-3 kg m2 a) What is the total kinetic energy (translational plus rotational) of the football just as it is thrown? b) If the ball rises to a maximum height of 10 m above the point where it left the quarterback's hand, what will be its translational and rotational kinetic energies at that point? [Neglect any effects of air resistance.]

**38. A quarterback fires off a pass with the football traveling at a speed of 20 m/s and with a rotational speed of 5 revolutions per second. The mass of the football is 400 g and its rota- tional inertia is 2 x 10-3 kg m2 a) What is the total kinetic energy (translational plus rotational) of the football just as it is thrown? b) If the ball rises to a maximum height of 10 m above the point where it left the quarterback's hand, what will be its translational and rotational kinetic energies at that point? [Neglect any effects of air resistance.]

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Dynamics

Section: Chapter Questions

Problem 50P: Four objectsa hoop, a solid cylinder, a solid sphere, and a thin, spherical shelleach have a mass of...

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