A mass m is taken to a planet whose mass is equal to half that of earth and radius is - Physics - Gravitation

Question

A mass m is taken to a planet whose mass is equal to half that of
earth and radius is 4 times that of earth The mass of the body on
this planet will be

Sanjay Upadhyay · Accepted Answer

Dear studentmass of earth m1=m, radius of earth=rand mass of planet m2=m2and radius of planet R=4rnow mass on planet will be Wp=Gm1m2R2 Wp=Gmm2(4r)2=132Gm1m2r2=WE32here WE is the mass on earth =Gm1m2r2
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A mass m is taken to a planet whose mass is equal to half that of earth and radius is 4 times that of earth .The mass of the body on this planet will be