Complete the lab and answer the questions in the essay box below. What happens to the cart?

Was an external force acting on the cart?

What was the momentum of the cart before the "explosion"?

What was the momentum of the cart after the "explosion"?

Do discrepancies exist?

Look at where m1d1 equals -m2d2 and where they are not quite equal. How would you account for the slight error involved?

What was the momentum before the explosion?

Having explained the reason for the slight discrepancies, under ideal conditions (no friction) what would be the momentum of the system after the explosion?

A stick of dynamite is placed in the center of a pile of rocks and ignited. What is the total momentum of all the pieces after the explosion?