Question

What is the gravitational field intensity on the surface of a planet if it's mass is doubled and radius is four times that of the earth?

Answer 1

7

acceleration due to gravity becomes twice of original.

formula for acceleration due to gravity is 

g=g
_
m

G is a constant equal to 6.67 × 10-11 N-m2/kg2,
M is mass of planet which is also a constant
r is radius of planet which is also a constant

if mass and radius are half of original i.e M/2 and r/2

g'=G(M/2)/(r/2)^2
which gives g' = 2GM/r^2
g'=2g
acceleration due to gravity got twice of original

Answer 2

nfirm your email to get notifications about answers and receive 10 points!
Brainly.in

What is your question?
Secondary SchoolPhysics 5+3 pts


What is the gravitational field intensity on the surface of a planet if it's mass is doubled and radius is four times that of the earth?
Ask for details FollowReport by Wwwsamragyeesw 4 minutes ago
Answers

Anuchopra ·
Know the answer? Add it here!
dghyfunkjfx
Dghyfunkjfx Virtuoso
7

acceleration due to gravity becomes twice of original.

formula for acceleration due to gravity is

g=g
_
m

G is a constant equal to 6.67 × 10-11 N-m2/kg2,
M is mass of planet which is also a constant
r is radius of planet which is also a constant

if mass and radius are half of original i.e M/2 and r/2

g'=G(M/2)/(r/2)^2
which gives g' = 2GM/r^2
g'=2g