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A 4 kg mass and 1kg mass are moving with...

A 4 kg mass and 1kg mass are moving with equal kinetic energies. The ratio of there momentum is :

A

`1 : 2`

B

`1 : 1`

C

`2 : 1`

D

`4 : 1`

Text Solution

Verified by Experts

The correct Answer is:
C
(c ) As `K = (P^2)/(2m), P = sqrt2mK or (P_1)/(P_2) = sqrt((m_1)/(m_2)) (for some K)`
or `(P_1)/(P-2) = sqrt((4)/(1)) = (2)/(4) = 2:1`
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