The earth revolves around the sun in an elliptical orbit. It has a speed `v_(1)` when it is at the minimum distance `d_(1)` from the sun. When it is a

Question

The earth revolves around the sun in an elliptical orbit. It has a speed `v_(1)` when it is at the minimum distance `d_(1)` from the sun. When it is a

The earth revolves around the sun in an elliptical orbit. It has a speed `v_(1)` when it is at the minimum distance `d_(1)` from the sun. When it is at the maximum distance `d_(2)` from the sun, its speed is
A. `(v_(1)d_(2))/(d_(1))`
B. `(v_(1)d_(1))/(d_(2))`
C. `v_(1)^(2)(d_(2))/(d_(1))`
D. `v_(1)((d_(1))/(d_(2)))^(2)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
By the principle of conservation of momentum,
`I_(1)omega_(1)=I_(2)omega_(2)`
`therefore md_(1)^(2)(V_(1))/(d_(1))=md_(2)^(2)(V_(2))/(d_(2))" " therefore V_(1)d_(1)=V_(2)d_(2)`

4 views Answered 2023-02-05 15:29