3) You pitch a baseball two times. After the second pitch, the baseball has 4 times as much kinetic energy as it had after the first pitch. After the second pitch, the baseball has momentum as it had after the first pitch. a) 4 times as much b) 2 times as much c) 1/2 as much d) 8 times as much e) the same

3) You pitch a baseball two times. After the second pitch, the baseball has 4 times as much kinetic energy as it had after the first pitch. After the second pitch, the baseball has momentum as it had after the first pitch. a) 4 times as much b) 2 times as much c) 1/2 as much d) 8 times as much e) the same

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 35P: Ignoring details associated with friction, extra forces exerted by arm and leg muscles, and other...

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In the Back to the Future movies (https://openstaxcollege.org/l/2lbactofutclip), a DeLorean car of mass 1230 kg travels at 88 miles per hour to venture back to the future. (a) What is the kinetic energy of the DeLorean? (b) What spring constant would be needed to stop this DeLorean in a distance of 0.1m?