GravitationHard
Question
The radius of earth is about 6400 km and that of mass is about 3200km. The mass of the earth is about 10 times of the mass. The object weights 200N on earth surface, then its weight on the surface of mass be
Options
A.80N
B.20N
C.40N
D.8N
Solution
We know that g = 
Value of g for mass =
[Radius of mass is 1/2 that of earth]

So, g′ =
g
If mg = 200 N, mg′ =
= 80N.

Value of g for mass =

[Radius of mass is 1/2 that of earth]

So, g′ =
gIf mg = 200 N, mg′ =
= 80N.Create a free account to view solution
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