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Byju's Answer
Standard XII
Physics
Work Energy Theorem Application
The ratio of ...
Question
The ratio of their kinetic energies.
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Solution
Considering center of mass to be origin,
m
1
r
1
=
m
2
r
2
Also,
K
1
K
2
=
1
2
(
m
1
r
2
1
)
1
2
(
m
2
r
2
2
)
=
m
1
m
2
m
2
2
m
2
1
=
m
2
m
1
Answer is
m
2
m
1
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