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It is called instantaneous velocity and is the slope of the line tangent to the point on the position versus time graph. It also can be found by differentiating position with respect to time (i.e. dx/dt)

Instantaneous Speed

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Q: What is the velocity of an object at any given instant in time is known as?
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What is called speed of an object at a given instant?

An objects speed at any particular moment in time is known as its instantaneous velocity. This is the rate of change or the derivative of the objects position.


How do you find the initial velocity given only the distance and the time traveled?

You can't. You need either the final velocity or the acceleration of the object as well, and then you can substitute the known values into a kinematics equation to get the initial velocity.


What is speed in given direction?

The amount of speed in a given direction is the 'component' of speed in that direction. The total amount of speed AND the direction of the total speed is the 'velocity' of the moving object.


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).


What is velocity used for?

Velocity is the rate of change in an object's location over time, also known as speed.


What two factors must be known to determine the velocity of an object in motion?

The object's speed and direction.


What is the speed an on object reaches when the force of gravity is balanced by air resistance called?

terminal velocity


What is the rate at which veloctiy changes?

That rate at which the velocity of an object changes is known as the acceleration of said object. It can be defined mathematically as a=v/t where a=acceleration, v=the change in velocity, and t=the time in which this change in velocity occurred.


What do you need to know describe the velocity of an object?

velocity is what is known as a vector quantity. What this means is it needs both a DIRECTION and a MAGNITUDE for the velocity to be fully described. that's what you need.


The gratest velocity a falling objects reaches?

The greatest speed a falling object is known as its terminal velocity. At this speed, the drag force from the air is equal to the object's weight, and so there is no net force to accelerate the object further.


What is velocity that a rocket must attain to escape the force of gravity on earth?

The velocity of a any object to surpass the gravity of earth commonly known as escape velocity is 11.2Km/s.


What to Things do you need to know to describe the velocity of an object?

velocity is what is known as a vector quantity. What this means is it needs both a DIRECTION and a MAGNITUDE for the velocity to be fully described. that's what you need.