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A planet moving along an elliptical orbit is closest to the sun at a distance r1 and farthest away at a distance of r2. If v1 and v2 are the linear velocities at these points respectively, then the ratio
v1 is v2
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- (r1 / r2)2
- r2 / r1
- (r2 / r1)2
- r1 / r2
- (r1 / r2)2
Correct Option: B
Angular momentum is conserved
∴ L1 = L2 ⇒ mr1v1 = mr2v2
⇒ r1v1 = r2v2
| ⇒ | = | |||
| v2 | r2 |
