Question

Two balls A and B of masses “m” and “2m” are in motion with velocities “2v”and “v” respectively. Compare their
a) their inertia
b) their momentum
c) force needed to stop them in same time

Pls answer fast
WILL MARK AS BRAINLIEST

Answer 1

Explanation:

a)if both are in motion remains in motion, if they are at rest remains at rest

b)

$p = mv \\ thus \: they \: both \: will \: be \: having \: same \: momentum$

Answer 2

Answer:

Given:

Two balls A and B of mass m and 2m

Initial velocity of first ball =2V

Initial velocity of second ball= V

1)Compare inertia:

As inertia is measure of mass. Hence the object with greater mass has more mass.

So, Ball B is having more inertia.

2)Compare momentum:

Momentum is the product of mad and velocity.

P= mxv

So Pa=mx2v=2mv

Pb=2mxv=2mv

So, momentum in both the cases are same.

3)The force needed to stop them in same time:

From Newton's second law:

F= dp/dt

= change in monentum/dt

= 0-2mv/time

As momentum is same for given time , so same force is required to stop them.

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