Question

[SolveLancer Test]A planet X is made up of material which makes its density - times that of carth. But the
volume of planet is 8 times that of earth. The acceleration due to gravity on earth is g. Then acceleration
due to gravity on planet X is[SolvcLancer Test]
b)
id​

Answer 1

Answer:

The acceleration due to gravity on earth's surface is

g=

R

2

GG

g=

R

2

Where, G is the gravitational constant, M is mass of earth, R is radius of earth, ρ is the density and V is the volume of earth.

V=4/3×π×R

3

Putting this value in (1), we get

g∝R

g

′

g

=

3R

R

∴g

′

=3g