Question

A 4 kg mass and a 1 kg mass are moving with equal kinetic energies the ratio of their momenta is

Answer 1

E¹ = E²

1/2m v2= 1/2 mv2

V1/V2= root under m1 / m2

P1/ P2= m1v1/ m2v2

= 4/1 root under 1/4

= 2: 1