Gravitation Question 295

Question: a planet in elliptical orbit around the sun 5’. Where is the kinetic energy of the planet maximum?

Options:

A) [P1]

B) [P2]

C) [P3]

D) [P4]

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Answer:

Correct Answer: D

Solution:

  • Angular momentum of the planet about S is conserved.

    So, [mvr=] constant. [v] is maximum when r is minimum.

    So, v is maximum at point[P4] . Hence K.E. is maximum at[P4] .



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