GravitationHard
Question
The radius of Earth is about 6400 km and that of mars is 3200 km. The mass of the Earth is 10 times the mass of mars. An object weight 200 N on the surface of Earth. Its weight on the surface of mars will be : -
Options
A.80 N
B.40 N
C.20 N
D.8 N
Solution
g = 
⇒
R is reduced to R/2 and the mass of the mars becomes 10 times
gmars =
gearth and Wmars = 
Wearth = 80N.
⇒ R is reduced to R/2 and the mass of the mars becomes 10 times
gmars =
gearth and Wmars = Wearth = 80N.Create a free account to view solution
View Solution FreeMore Gravitation Questions
A cavity of radius R/2 is made inside a solid sphere of radius R. The centre of the cavity is located at a distance R/2 ...A man of mass m starts falling towards a planet of mass M and radius R. As he reaches near to the surface, he realizes t...The value of acceleration due to gravity , at earth surface is g. Its value at the centre of the, which we assume as a s...A geostationary satellite is orbiting the earth at a height of 5R above the surface of the earth, R beingthe radius of t...The magnitudes of gravitational field at distance r1 and r2 from the centre of a uniform sphere of radius R and mass M a...