What is the definition of average velocity and instantaneous velocity?

Answer 1

The definition of average velocity is the average speed over a period of time, which is equal to distance divided by time, if I remember correctly.

Instantaneous velocity is the speed in a single moment (as opposed to speed over time), so your instantaneous speed upon backing out of a driveway might be 20 km/h, but your average speed after driving forty miles might be 70 km/h.

Answer 2

Average velocity is calculated over a period of time. For instance, let's say the initial position is zero meters. The final position is twenty meters. If it took five seconds to travel twenty meters, then the average velocity is four meters per second. Instantaneous velocity is calculated at an instance of time. An example would be calculating the velocity at twenty-one meters at a time of exactly three seconds. The instantaneous velocity would be seven meters per second. In both cases, derivatives and/or limits can be used to make velocity calculations.

Answer 3

If you go from city a to city b, travel 60 miles and make it there in 1 hour your average velocity is 60 mph. But it is still possible that at any moment during your trip you were going a different speed, perhaps you had to stop for gas...meaning you had to go faster at some point to make up for it. You can still get a speeding ticket along the way if your instantaneous velocity is too high.

Answer 4

Average velocity is just that. The displacementdivided by the time taken. It does not take into account any stops or changes in velocity during the journey.

Instantaneous velocity is the velocity at any instant.