Question

25 Points Please Answer Fast For Brainliest!

Two balls a and b of masses 2m and 4m are in motion with velocities 2v and 4v respectively. what is the force needed to stop them in the same time. Please Answer Fast Will Definitely Mark As Brainliest!

Answer 1

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.