GravitationHard
Question
The earth rotates about the sun in an elliptical orbit as shown in figure. At which point its velocity will be maximum ?
Options
A.at C
B.at A
C.at D
D.at B
Solution
When earth rotates around the Sun, the net torque acting on the body is zero.So,angular momentum will be conserved at all points.
I1ω1 = I2ω2
⇒ mv1r1 = mv2r2
v1r1 = v2r2
At ′A′ radius is minimum so, velocity of the earth will be maximum.
I1ω1 = I2ω2
⇒ mv1r1 = mv2r2
v1r1 = v2r2
At ′A′ radius is minimum so, velocity of the earth will be maximum.
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