Law of Conservation of Momentum

[ProPM]

I am planning an experiment on the Law of Conservation of Momentum and the variable I wanted to investigate would be the effect of the collision time.

I am however, a bit in doubt:

Force = Change in Momentum / Time

I understand that if I decrease the time of impact I will increase the force. I am thinking the increase in the force would cause a greater acceleration, but isn't the change in momentum of the cars a fixed value?

So maybe, if the force increases as the time of the collision decreases the force the first, moving ball, experiences will cause it not only not to become stationary but move backwards?

Can anyone help please?

Thanks!

 

[cupid.callin]

How are you thinking of increasing force ... one way i can think is through increasing initial speed
And if you increase that ... final velocities will change and also change in momentum

 

[ProPM]

I was thinking of changing the time of the collision, but since I am not very sure of the effect of that.

 

[cupid.callin]

if you change the time of collision ... force will change accordingly so that momentum remains same ... You can confirm this if you have a Hi tech Lab

 

[ProPM]

So, if, for example, I increase the time of the collision, therefore, decrease the force, the following would not happen: Ball A is moving, Ball B is not. Ball A hits ball B. Since the force is weaker Ball A would decrease its velocity (not come to a stop) and balls B velocity would increase by the amount that the velocity of Ball A was decreased (provided they have the same mass)?

In other words, in the collision, the initially moving ball will always come to a halt?

Thanks once again.