PIRA 1N30.30
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Attach a Pasco Motion Detector to each end of the Pasco Dynamics Track as shown above at left. Be sure to level the track with a spirit level. For elastic collisions, orient two Pasco Dynamics Carts on the track so that the magnets in their bumpers are repulsive and propel them towards each other, or have the plunger on one cart face the other, or start with them together so that the plunger on one cart will push them apart when released, as shown above at right. For inelastic collisions, orient the carts so that the velcro pads on the bumpers will hold them together when they collide. Be sure to stop the carts before they hit the motion detectors. The motion detectors allow simultaneous, real-time measurements of position, velocity, and acceleration as functions of time. This requires the Pasco 6500 Interface, and a computer with Pasco Science Workshop software. Project real-time velocity graphs for each cart, as shown below, onto a screen with an LCD projector connected to the computer.
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