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Can instantaneous speed and average speed ever be different for a moving object?
Wiki User
∙ 12y ago
Of course. When you're driving on the Interstate and you see a State Police cruiser
coming up behind you, you stomp the brake and slow way down to the speed limit.
Now your instantaneous speed is only the speed limit. You feel like you're crawling,
you can't stand it, and as soon as you're sure he can't see you and doesn't care,
you let your car come back up to normal speed again.
Your average speed for the trip, or for any whole hour that includes that little
episode, is comfortably in excess of the limit, although your instantaneous speed
at any instant during those few minutes was exactly the posted limit.
Wiki User
∙ 12y ago
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How are average speed and instantaneous speed alike?
Average speed and instantaneous speed are both measurements of the speed of an object. The instantaneous speed measures how fast the object is going at a particular moment, while average speed shows how fast the object was moving in total over time.
What is the average speed of an object moving constant in a circle?
An object can move in a circle at different speeds.
What's the difference between instantaneous velocity and instantaneous acceleration?
Instantaneous velocity is the rate at which an object is moving in a uniform direction, distance per unit time, at any given instant in time. instantaneous acceleration is the rate at which an object's velocity is changing at any given instant in time
Does the instantaneous speed ever equal the magnitude of its average velocity?
Yes. For a start, this happens when the object moves at a constant velocity. Also, if moving in a straight line, even if the object changes speed there must needs be a moment when its instantaneous speed is equal to its average speed - since it cannot change speed suddenly, it must do so gradually.
What is the difference between instantaneous speed and average speed?
Instantaneous speed is the speed at a particular moment in time.The average speed of an object tells you the (average) rate at which it covers distance
Average speed is the rate at which an object is moving at a given instant?
No. Average speed is the rate an object is moving measured over more than an instant, such as one second, one minute, or something like that. Instantaneous speed, however, is the limit of the average speed as the interval of time approaches zero, i.e. at a given instant.
The average velocity of an object moving along a straight line is always as big as its instantaneous velocity?
Not at all. If it slows down or speeds up at any point, then it'll have different instantaneous velocity at different points, and its average velocity for some section of the line can be yet another different number. Simple example: A guy drives home from the office at a steady speed of 35 miles per hour. On the way, he stops buy a soda. His instantaneous velocity is zero during the stop, and 35 miles per hour whenever he's moving. His average velocity for the trip home is more than zero, and less than 35 miles per hour.
Define speed at which an object is moving at a given instant time?
If the displacement of the object (its position) can be described as a functional or algebric equation, you can find the instant speed of this object by calculating the derivative of its displacement equation, knowing that speed is the first derivative of position and acceleration, its second.
When is the average velocity is equal to the instantaneous velocity?
Average velocity equals the average speed if (and only if) the motion is in the same direction. If not, the average speed, being the average of the absolute value of the velocity, will be larger.
What is an object doing at the moment it's instantaneous acceleration is zero?
it can be moving at constant velocity or staying still
Is ta possible for an object to have average velocity equal to its instantaneous velocity?
Yes, yes it is
What is the defintion for instantaneous speed?
the rate at which an object is moving at any given moment in time. from the physical science glossary
