Question

Two billiard balls each of mass 0.05 kg moving in opposite direction

Answer 1

I think your que. Is .Two billiard balls each of mass 0.05kg moving in opposite directions with speed 6m/s collide and rebound with the same speed. What is the impulse imparted to each ball due to other.

Ans.

Impulse (I) = Change in linear momentum

_____________

Initial momentum of ball ( both) = mv =

0.05×6 = 0.30 Kg m/s

Final momentum of both balls = -(0.05×6)Kg-m/s .

here minus sign is because the direction of final momentum is just opposite to the direction of initial momentum (linear momentum is a vector )

_______________

Now impulse imparted to each ball ;

I = -0.30 - ( 0.30) = -0.60 Kg-m/s

_______________

hope it helps !

Answer 2

Explanation:

We have simple formula

Impulse (I) = Change in linear momentum

_____________

Initial momentum of ball ( both) = mv =

0.05×6 = 0.30 Kg m/s

Final momentum of both balls = -(0.05×6)Kg-m/s .

Negative sign shows the direction of final momentum is just opposite to the direction of initial momentum (linear momentum is a vector )

_______________

By initial calculations

We get :

Now impulse imparted to each ball ;

I = -0.30 - ( 0.30) = -0.60 Kg-m/s