Question
Question: A planet revolves in elliptical orbit around the sun. The linear speed of the planet will be maximum...
A planet revolves in elliptical orbit around the sun. The linear speed of the planet will be maximum at :
A
A
B
B
C
C
D
D
Answer
A
Explanation
Solution
Here, angular momentum is conserved, i.e.
L = Iw constant. At A.
the moment of inertia I is least. So angular speed and therefore the linear speed of planet at A is maximum.