Question

a planet has 20% mass More than earth
and radius less than 20% so what the acceleration due to gravity of that planet​

Answer 1

Answer:

gravity depend on M/R^2

let mass is m and radius is r

then

planet has mass of 6m/5

and radius is 4r/5

acc. due to gravity is (G×6m×25)/(5×16r^2)

=30GM/16r^2

=15GM/8R^2

it is 15g/8

ok

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