Questions
Figure shows a planet in an elliptical orbit around the Sun S. Where is the kinetic energy of the planet maximum?
a
P1
b
P2
c
P3
d
P4
detailed solution
Correct option is D
Here, angular momentum is conserved. According to it,I1w1= I2w2MR12ω1=MR12ω2,R1v1= R2v2At point P4, the value of R is minimum and hence the velocity is maximum or KE is maximumTalk to our academic expert!
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