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A body of mass m(1) moving with uniform...

A body of mass `m_(1) ` moving with uniform velocity of 40 m/s collides with another mass `m_(2)` at rest and then the two together begin to moe wit h uniform velocity of 30 m/s. the ratio of their masses `(m_(1))/(m_(2))` is

A

0.75

B

1.33

C

3

D

4

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The correct Answer is:
C
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