You can buy the device that shows the conservation of energy, momentum and friction for $45 on Walmart, but Lara decided she wanted to make one instead. So she found a youtube video and got to work.











You can buy the device that shows the conservation of energy, momentum and friction for $45 on Walmart, but Lara decided she wanted to make one instead. So she found a youtube video and got to work.
Wow. Very neat!
Thanks!
Very successful project. What happens if you start with two marbles pulled to the side?
Two marbles on the other side fly out.
Bravo Lara and the team!