Question

Two bodies A and B of same mass are moving with velocities v and 2v respectively.

Compare their – a) inertia, and b) momentum.​

Answer 1

• interia of body is 1:1 .

• momentum = mv
• ratio of momentum = 1:2

Answer 2

Let mass of both A and B be = m

We know,

Inertia: The mass of an object is the measurement of it's inertia.

∴ Ratio:-

m : m

= 1 : 1 (1).

We also know,

$\boxed{p = mv}$,

∴ Ratio:-

m(2v) : m(v)

= 2v : v

= 2 : 1 (2).