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
Average density of the earth...The escape velocity from the earth is 11.2 km/sec. The escape velocity from a planthaving twice the radius and the same ...A staellite is launched into a circular orbit of radius R around the earth. While a second satellite launched into an or...Planck's constant (h), speed of light in vacuum (c) and Newton's gravitational constant (G) are three fundamenta...A tunnel is dug along a chord of the Earth at a perpendicular distance R/2 form the Earth′s centre. The wall of th...