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Physics
Physics
Problem
Two planets X and Y have masses in the ratio
M
X
:
M
Y
=
2
:
1
M_{\text{X}}:M_{\text{Y}} = 2:1
M
X
:
M
Y
=
2
:
1
and radii in the ratio
R
X
:
R
Y
=
1
:
2
R_{\text{X}}:R_{\text{Y}} = 1:2
R
X
:
R
Y
=
1
:
2
. What is the ratio of their surface accelerations due to gravity
g
X
:
g
Y
g_{\text{X}}:g_{\text{Y}}
g
X
:
g
Y
? a)
2
:
1
2:1
2
:
1
b)
4
:
1
4:1
4
:
1
c)
8
:
1
8:1
8
:
1
d)
1
:
2
1:2
1
:
2
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