please it is very urgent ..exam

Asked by pranavjain | 22nd Jan, 2010, 07:01: PM

Expert Answer:

Dear Student

On Any planet Gravitation g=Gm/r2 

(Where G=Universal Gravitational constant, m= Mass of the planet, R= Radius of the planet)

Sub stitute m=M/2, r=R/2    (M,R are Mass and radius of earth )

gravitation on tha planet =(GM/2)/(R2/4)= 2GM/R2=2g

So the gravitation on that planet is twise that on earth.



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Answered by  | 22nd Jan, 2010, 07:38: PM

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