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One metallic sphere is at rest. Another ...

One metallic sphere is at rest. Another metallic sphere hits the first and comes to rest and second sphere moves. The ratio of their masses is

A

`frac(m_1)(m_2) lt1`

B

`frac(m_1)(m_2)gt1`

C

`frac(m_1)(m_2) =1`

D

`frac(m_1)(m_2) =2`

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