Calculus, 10th Edition (Anton)

Published by Wiley
ISBN 10: 0-47064-772-8
ISBN 13: 978-0-47064-772-1

Chapter 12 - Vector-Valued Functions - 12.7 Kepler's Laws Of Planetary Motion - Exercises Set 12.7 - Page 902: 6

Answer

\[ v_{\text{max}} = v_{\text{min}} \frac{1-e}{1+e} \]

Work Step by Step

As stated in the exercise, we use the previous results. This is a simple matter of plugging things into the formula so we easily see that: \[ v_{\text{max}} = \frac{r_{\text{max}}}{r_{\text{min}}} v_{\text{min}} = \frac{a(1+e)}{a(1-e)}v_{\text{min}} = v_{\text{min}} \frac{1+e}{1-e} \] Result: \[ v_{\text{max}} = v_{\text{min}} \frac{1+e}{1-e} \]
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