Trajectory of earth if sun reduced and earth velocity increased

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SUMMARY

The discussion centers on the effects of a 1% reduction in the Sun's mass and the Earth's velocity on its orbital trajectory. The gravitational relationship is defined by the equation (V^2)/r = GM/r^2, where G represents the gravitational constant. By substituting the reduced values for velocity (v = 0.99v) and mass (M = 0.99M), the trajectory can be expressed as r = r/0.99, indicating that the Earth's orbital radius would increase as a result of these changes.

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shashwat
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I need Help!

I've got this question which I can't Answer :

If the mass of the Sun is reduced by 1% and the Earth's velocity is also reduced by 1%, what will be the trajectory of the Earth?
 
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Interesting. Well, gravity provides the centripedal acceleration of our orbit. So that:

(V^2)/r = GM/r^2

now, cancel an r and set v = .99*v and M = .99*M, then rearrange to get a numerical factor multiplied by r. I think the answer would be r = r/.99
 

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