Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 8 - Exercises and Problems - Page 142: 47



Work Step by Step

We find the escape speed: $v_{esc}=\sqrt{\frac{2GM}{r}}$ $v_{esc}=\sqrt{\frac{2(6.67\times10^{-11})(1.99\times10^{30})}{1.87\times10^{12}}}=1.19\times10^4$ Since the Comet is going faster than this, it will not return to the sun's vicinity. Thus, the motion is hyperbolic, not elliptical.
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