An asteroid moves around the sun in a path as shown in Figure. The asteroid is an unbound particle (and is free to continue an infinite distance away from the sun). At the point indicated, which of the following statements is true of the asteroid's velocity?
A.
\( \nu < \sqrt{\frac{2G m_{\text{ast}} m_{\text{sun}}}{r^2}} \)
B.
\( \nu > \sqrt{\frac{2G m_{\text{ast}} m_{\text{sun}}}{r^2}} \)
C.
\( \nu < \sqrt{\frac{G m_{\text{sun}}}{r}} \)
D.
\( \nu = \sqrt{\frac{G m_{\text{sun}}}{r}} \)
E.
\( \nu > \sqrt{\frac{2G m_{\text{sun}}}{r}} \)
Exam No：669150c873227159a6b1751c Year：2024 Question No：1
Answer:
E
Knowledge points:
7.2 Orbits of Planets and Satellites
Solution:
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