Question

Two masses of 1 g and 9 g are moving with equal kinetic energies. The ratio of
the magnitudes of their respective linear momenta is
(a) 1:9
(b) 9:1
(c) 1:3
(d) 3:1​

Answer 1

Answer:

d) 3 : 1

Explanation:

Let the velocity of mass of 1g be x

And let the velocity of mass of 9g be y

According to question  $\frac{x^{2} }{2} =\frac{9y^{2} }{2}$,

  which gives x=2y

Then ratio of momentum =  x /9y =  3 :1

hope it will help u