Question

two balls A and B of masses m and 2m are in motion with velocity 2v and v respectively compaire 1.there inertia 2.there momentum

Answer 1

1. inertia

considering the balls are hollow,their inertia is

I= (2/3)*mr^2

where
m equals mass of hollow sphere
r equals radius of sphere

hence inertia of ball A and B respectively is

(2/3)mr^2 and (4/3)mr^2

2. linear momentum

linear momentum = mv
v equals velocity of hollow spehre

linear momentum of A and B respectively are

2mv and 2mv

from the above results , we can draw the inferences that :

1. assuming both balls have the same radius, inertia possessed by the ball B is 2 times that of ball A
2. Linear momentum possessed by both the balls is same