glencoe virtual lab conservation of momentum conceptual physics unit 3

I need help filling out the chart of vehicle data. Mass, speed before, after, direction of motion before, momentum before. I do not understand how to get the answers. I can see vehicle mass is 1000kg or 3000kg but I need help understanding the rest of the chart. http://www.glencoe.com/sites/common_assets/science…
 
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