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Question
Physics
Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each partial with respect to their centre of mass is :
Q. Two particles of equal mass
′
m
′
go around a circle of radius
R
under the action of their mutual gravitational attraction. The speed of each partial with respect to their centre of mass is :
5294
237
AIEEE
AIEEE 2011
Gravitation
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A
4
R
G
m
32%
B
3
R
G
m
3%
C
2
R
G
m
26%
D
R
G
m
39%
Solution:
(
2
R
)
2
G
m
2
=
m
ω
2
R
4
R
3
G
m
2
=
ω
2
ω
=
4
R
3
G
m
v
=
ω
R
v
=
4
R
3
G
m
×
R
=
4
R
G
m