The mass of two substances are $4gm$ and $9gm$ respectively. If their kinetic energies are same, then the ratio of their momenta will be
The mass of two substances are $4gm$ and $9gm$ respectively. If their kinetic energies are same, then the ratio of their momenta will be
- A
$4:9$
- B
$9:4$
- C
$3:2$
- D
$2:3$
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