How does average velocity differ from instsntaneous velocity?

Answer 1

If a 5 mile stretch of a bus journey lasts 15 minutes, then the average speed over this stretch was 20mph. But undoubtedly the bus achieved greater speeds than this, and it also spent time sitting still in queues. So the simple answer to the question is 'yes'. Less trivially and more interestingly: unless velocity is actually constant, then an object's average velocity over a finite time interval - and hence any empirical measurement of its speed - must (nearly always) differ from the instantaneous velocity. As the time period grow closer to zero, the measured velocity will converge on the instantaneous figure, but will never reach it.

Answer 2

Average velocity is the total displacement of an object over a given time interval, while instantaneous velocity is the velocity of an object at a particular moment in time. Average velocity is calculated by dividing the total displacement by the total time, whereas instantaneous velocity is determined by finding the slope of the tangent line on a position-time graph at a specific point.

Answer 3

Of course. When you're sailing along in the car on the highway with the

"cruise control" on, and the ride is smooth as silk and the speedometer is

pointing at ' 60 ' and never moving, your average and instantaneous speed

are equal, until you do something to change your speed.

And if the road is straight and you keep moving in a straight line, then the

same statement is true of your velocity, as well as your speed.

Answer 4

No it does not. If the velocity is 10 m/s for 10 secs and 0 for another 10 secs, then the average is 5 m/s which is non-zero over the 20 second period. But the instantaneous velocity is zero for the period from 10 to 20 seconds.

Answer 5

Of course. If you drive on a long-distance trip for 10 hours each day and spend

the remaining 14 hours in a motel, then the instantaneous 70 or 75 mph that

you frequently hit while on the interstate during the day is most definitely greater

than your average speed for the trip.

Answer 6

No. Its velocity, average velocity and instantanous velocity will all be the same at any (or every) time an investigator makes an observation.

Answer 7

Yes, if the instant in question is near the end of the objects travel, but no if it is at the very begining, unless the object's velocity is somehow increasing while it is in movement.

Answer 8

Yes. Velocity is speed and direction so it can change velocity by changing direction.

Answer 9

Average velocity is the average of the velocty of entire motion where as instantaneous velocity is the velocity at an instant, it may be a function of time or displacement.

Answer 10

No. If it its moving at constant velocity, its instantaneous velocity would be the same as its constant velocity.