Question

HELP!!! WILL FAN AND MEDAL!!!!

Answer 1

Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball
B has a mass of 3 kilograms. The initial velocity of ball A is 9 meters per second to
the right, and the initial velocity of the ball B is 6 meters per second to the left. The
final velocity of ball A is 9 meters per second to the left, while the final velocity of
ball B is 6 meters per second to the right.

Answer 2

1. Explain what happens to each ball after the collision. Why do you think this
occurs? Which of Newton’s laws does this represent?

Answer 3

@escamer

Answer 4

@rarecigs

Answer 5

Is this easy enough?

Answer 6

From what i know now. It represents Newton's third law which states "For every action there is an equal and opposite reaction" im not to sure about the rest :/

Answer 7

thanks thats the part i was stuck on

Answer 8

not a problem. Glad i could help

Answer 9

=D

Answer 10

@comrad

Answer 11

well?

Answer 12

@jabez177

Answer 13

@imqwerty please help me

Answer 14

jabez said your good at physics qwerty so i asked you =)

Answer 15

......??

Answer 16

Thank you soooooooooooooooooooo much for this really long answer.....

Answer 17

alright
so here newton's 3rd law comes into play

it says that when 2 bodies collide they exert equal and opposite force on each other
so if the ball A exerts force \(F_1\) and ball B exerts force \(F_2\) then

\(F_1=-F_2\)
here we put that negative sign because both forces are opposite to each other

the forces act between the two objects for a given amount of time. In some cases, the time is long; in other cases the time is short. Regardless of how long the time is, it can be said that the time that the force acts upon object 1 is equal to the time that the force acts upon object 2. This is merely logical.
so \(t_1=t_2\)

Since the forces between the two objects are equal in magnitude and opposite in direction, and since the times for which these forces act are equal in magnitude, it follows that the impulses experienced by the two objects are also equal in magnitude and opposite in direction. As an equation, this can be stated as

\(F_1 \times t_1= -F_2 \times t_2\)
=> \(m_1 \Delta v_1= - m_2 \Delta v_2\)

here \(v_1\) and \(v_2\) denote the velocities of ball A and B resectively
and \(\Delta v_1\) is nothing but this-> change in velocity of ball A
and \(\Delta v_2\) is nothing but this-> change in velocity of ball B

change in velocity in nothing but -> final velocity - initial velocity

using this logic you can prove the given statement as alright

helpful link- http://www.physicsclassroom.com/class/momentum/Lesson-2/Momentum-Conservation-Principle

Answer 18

O...M.....G 0_0 thank you sooooo much

Answer 19

yw

Answer 20

in short you can say this-> the two balls come and collide and revert back from where they came after collision and this occurs because both balls exert force on each other when they collide. this is newton's third law