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Question

A small asteroid is orbiting around the sun in a circular orbit of radius r0 with speed Vo. A rocket is launched from the asteroid with speed V=αVo, where V is the speed relative to the sun. The highest value of α for which the rocket will remain bound to the solar system is (ignoring gravity due to the asteroid and effects of other planets)

  1. 2
  2. 2
  3. 3
  4. 1

A
2
B
2
C
3
D
1
Solution
Verified by Toppr

For rocket to remain bounded the max value of α can be found by using m(αVo)22=GMmro=mv2o
so α=2

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