Speed and velocity are rates. They tell us how much distance is covered in a unit of time. Velocity differs from speed because velocity depends on direction, while speed does not. Velocity can be expressed by the formula
where v = velocity or speed (in m/s), d = distance traveled (in meters), and t = time (in sec). In this activity, you will study the velocity of a car after it is released from different points on a ramp. A computer-interfaced Motion Detector will be used to measure velocity.
In this experiment, you will
Measure velocity using a Motion Detector.
Determine the relationship between velocity and release point.
Sensors and Equipment
This experiment features the following Vernier sensors and equipment.