Observe behavior below by clicking on the Play icon. Then answer the following question: Which particle has the largest force applied to it?

The two trucks shown have equal mass and all other physical properties. The left truck is stationary and right truck is moving toward left. What happens to them after collision? 
Specify the initial velocity of the ball so that it passes through the open in the wall to the right. To do so, click on the V icon, then click on the particle and drag your mouse to define the velocity vector.
Were you able to see the simulations without any problems?


How much value can simulations potentially add in creating rich assessments?
What is the top improvement you would suggest we make in the simulation?