Asked by Akbar
You are on Mars and would like to send a probe into space so that it does not fall back to the surface. What minimum launch speed do you need? (The mass of Mars is 6.42x10^23 kg and the radius of Mars is 3.40x10^6 m)
km/s
Please someone also help me on this.I really don't know how to do this.Thank you.
km/s
Please someone also help me on this.I really don't know how to do this.Thank you.
Answers
Answered by
bobpursley
PE at surface= GMm/r
PE mars= GMmars*m/rm
PE earth= GMe*m/re
so on mars, you have to overcome the PE at the surface, or
1/2 m v^2=GMmars*m/rmars
velocity= sqrt(2G*MassMars/radiusMars)
PE mars= GMmars*m/rm
PE earth= GMe*m/re
so on mars, you have to overcome the PE at the surface, or
1/2 m v^2=GMmars*m/rmars
velocity= sqrt(2G*MassMars/radiusMars)
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