Frame: Time:  sec   Step through the video clip frame by frame and track a convenient point on each cart.
 Determine the velocity of each cart before and after the collision.  Record  the distance traveled and the direction of motion (positive towards the right, negative toward the left) in the table below.  (Example:  If a cart moves 5.5 cm towards the right enter 5.5, if it moves 5.5 cm towards the left enter -5.5 into the distance traveled cell.)  A script calculates the velocity and the momentum.  After you have determined the momentum of each cart before and after the collision, click the button to calculate the total momentum before and after the collision.  Note: You only have to make one measurement after the collision, both carts travel the same distance in the same time interval.
 Distance traveled before the collision in 0.345 s Frame 2 to frame 12 Distance traveled after the collision in 0.345 s Frame 15 to frame 25 Velocity before the collision Velocity after collision Momentum before the collision Momentum after the collision Cart 1 (right)  mass = 0.5 kg cm cm cm/s cm/s kg cm/s kg cm/s Cart 2 (left)  mass = 0.5 kg cm cm cm/s cm/s kg cm/s kg cm/s Total momentum before and after the collision: kg cm/s kg cm/s