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Is Average velocity the slope of the line tangent to the curve on a velocity-time graph at a specific instant of time?
No. What you've described is instantaneous acceleration.
To lift the average speed from a graph, you need a graph of distance-time.
Pick two points in time, and find the distance at both those times.
The average speed over that time interval is (difference between the distances
at the beginning and end) divided by (difference between the two times). If you're
just going for the average, then it doesn't matter what happened during the interval,
only the values at the end-points.
The slope of the line tangent to the curve on your distance-time graph
is the instantaneous speed at that point in time.
We're saying "speed" in this discussion because there's actually no such thing as
a graph of velocity. No simple thing anyway. Velocity is a vector, whose magnitude
is speed and which includes a direction. It's easy to graph speed vs time, but not
that easy to graph direction vs time. So all the graph shows is speed.
What else can I help you with?
Is Average velocity the slope of the line tangent to the curve on a velocity time graph at a specific instant of time?
No, average velocity is the total displacement divided by the total time taken. The slope of the tangent to the curve on a velocity-time graph at a specific instant of time gives the instantaneous velocity at that moment, not the average velocity.
What is instantaneus velocity?
Instantaneous velocity is the velocity of an object at a specific instant in time. It represents the object's speed and direction at that moment. It is calculated as the limit of the average velocity as the time interval approaches zero.
What is a instantaneous velocity?
Instantaneous velocity is the velocity of an object at a specific instant in time. It is the rate of change of position of an object with respect to time at that exact moment. This instant velocity may differ from the average velocity over a given time interval.
How fast velocity is changing at a specific instant?
Acceleration is the rate of change of velocity.
Can the velocity of an object at an instant of time be greater in magnitude than the average velocity over a time interval containing the instant. Can it be less?
Yes, the velocity of an object at an instant of time can be greater than the average velocity over a time interval containing the instant, especially if the object is changing velocity rapidly. Similarly, it can also be less than the average velocity, especially if the object is reversing direction or slowing down during that time interval.
What is the best definition of velocity?
The speed of something in a given direction.
What is a word that means velocity at any instant of time?
Instantaneous velocity is the term that describes velocity at any specific moment in time.
When an object and acceleration is zero at some instant t in time its velocity is?
If an object's acceleration is zero at a specific instant in time, its velocity can either be zero or a constant non-zero value at that instant. This means that the object could be either at rest or moving with a constant velocity at that particular moment.
What is the correct definition of instantaneous velocity?
The velocity of an object at a particular instant or at a particular point of its path is called instantaneous velocity. In another word, the instantaneous velocity of an object is defined as the limiting value of the average velocity of the object in a small time interval around that instant , when the time interval approaches zero. v = dx/dt , where dx/dt is the differential coefficient of displacement "x" w.r.t. time "t"
What is how fast a velocity is changing at a specific instant?
IF it changes to the completely opposite direction ... does a 180 or a "U-turn" ...then the velocity must be zero at that instant. But if the direction only changesby turning a corner or going around a bend, then there's no way to know whatthe velocity is without a lot more information.
When is the instantaneous velocity equal to avg velocity?
Mainly, when the velocity doesn't change. Also, in the case of varying velocity, the instantaneous velocity might, for a brief instant, be equal to the average velocity.
The measure of how fast a velocity is changing at a specific instant is known as?
The rate of change of velocity is known as acceleration. This can come in different forms (linear / nonlinear acceleration, angular acceleration ect).
