Question

The mass of two substances are 25 g and 89 g respectively.
If their kinetic energies are same then their ratio of their
momentum is :​

Answer 1

Answer:

Ratio = 5:√89

Explanation:

We know that,

Kinetic energy:- (momentum) ^2/2(mass)

Let KE AND KE' be kinetic energy of both substances,

KE= P^2/ 2*25/1000

= P^2/1/20

= 20*P^2

KE'= P'^2/2*89/1000

it is given that

KE = KE'

BY SUBSTITUTING THE VALUE:-

WE GET,

P/P'=√25/√89

Therefore,

Momentum:momentum'=5:√89