Is Momentum Conserved in a Collision?

[freqs]

Homework Statement

This is a lab, I think I want to find if momentum is conserved after collision (data for proof).

Homework Equations

Change Y = Vit + .5at^2
M1V1=M2V2

The Attempt at a Solution

I found that time is equal to 0.515 seconds from using that equation.

-1.3M = 0 + .5(-9.8m/s^2)t^2

I don't know what to do next... I got the distance where the balls collide and landed, and where the it would originally land if it didn't collide.

 

[jbsteele]

Now I need to figure out M1V1=M2V2. I had 2 balls that collided, 1 with a mass of 0.29 kg and the other with a mass of 0.40 kg. I calculated the velocities before and after the collision, but I'm not sure how to calculate the momentum. Can someone help me please?

 

[kerimek]

As a scientist, it is important to have a clear and organized approach to solving problems and conducting experiments. In this case, it seems like you have identified the objective of the lab and have started to gather data. However, it is important to clearly state the purpose of the lab and the hypothesis being tested. In this case, it seems like the goal is to determine if momentum is conserved after a collision.

Next, it would be helpful to define the variables being used and the equations being applied. It appears that you are using the equations for motion with constant acceleration (such as the change in position equation and the momentum equation). It would be helpful to also define the units being used for each variable.

In terms of your calculations, it is important to show your work and the steps you took to arrive at your answer. This will make it easier for others to understand and replicate your results. Additionally, it is important to double check your calculations and units to ensure they are correct.

Overall, it seems like you have made a good start in gathering data and working towards a solution. However, it is important to have a clear and organized approach when conducting experiments and to clearly state your methods and results.