Wed February 08, 2012 By:

Can we convert speed into velocity?

Expert Reply
Wed February 08, 2012

  • Determine the speed of an object by first measuring the distance an object has traveled from predetermined points A and B. For example, consider a car rolling forward at a constant speed for 250 meters.

  • Measure the amount of time it takes for the object to traverse the distance between points A and B. For example, consider the car at constant speed taking 90 seconds to roll 250 meters.

  • Divide the distance traveled by the amount of time taken to travel from point A to point B. For example, the speed equation for the car rolling 250 meters at constant speed for 90 seconds is: (250 meters / 90 seconds) = 2.8 m/s.

  • Determine the velocity by considering the direction the object moves in, relative to the observer. For example, because the car rolling at 2.8 m/s is moving forward, the velocity is +2.8 m/s. If the car had been rolling backward, velocity would equal -2.8 m/s.

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