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
View Solution FreeMore Gravitation Questions
Two bodies of masses 1 m and 2 m are initially at rest at infinite distance apart. They are then allowed to move towerds...The condition for a uniform spherical mass m of radius r to be a black hole is :- (G = gravitational constant and g = ac...Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will :-...A satellite of mass m revolves around the earth of radius R at a height x from its surface. If g is the acceleration due...The ratio of radii of two plants 1 r and 2 r is k. The ratio of acceleration due to gravity on them is r. Then the ratio...