Question

Two bodies of mass 1 and 4 kg are moving with equal kinetic energies .the ratio of their linear momentum is

Answer 1

It would be 1/2 as
$ke = p {}^{2} \div 2m$

Answer 2

Answer:

Explanation:

It is given that two bodies with kinetic energy in the ratio 4:1 are moving with equal linear momentum. So we have the following dates.

K=1/2mv²

K'=1/2m'v²

Here, K=4 and K'=1:

If both bodies are moving with equal linear momentum, so it means they have inverse masses in comparison of their kinetic energy. I.e KE=P²/2m

So, We have:

KE/KE'=M1/M

4/1=M1/M

So ratio of their masses will be 1:4.