Given :
mass = m = 25kg.
g = 10m/s2
weight on earth = W = mg = 25x10 = 250N
The body is carried to a planet whose mass is two times of earth=2M
radius=R/2
Formula to be used:
g=GM/R²
=G(2M)/(R/2)²
=8GM/R²g
= 8(GM/R²)=8x10 [ ∴ g on earth=10m/s2]=80 m/s2
Therefore weight of body on other planet is W=mxg=25x80=2000N and
mass remains constant through out universe=m=25kg
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Verified answer
Given :
mass = m = 25kg.
g = 10m/s2
weight on earth = W = mg = 25x10 = 250N
The body is carried to a planet whose mass is two times of earth=2M
radius=R/2
Formula to be used:
g=GM/R²
=G(2M)/(R/2)²
=8GM/R²g
= 8(GM/R²)=8x10 [ ∴ g on earth=10m/s2]=80 m/s2
Therefore weight of body on other planet is W=mxg=25x80=2000N and
mass remains constant through out universe=m=25kg