Math and Arithmetic

When average velocity and average speed is equal?

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2012-06-11 16:37:39
2012-06-11 16:37:39

For the instantaneous value of average velocity, average speed and average velocity are equal.

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The magnitude of average velocity of an object equal to its average speed if that object is moving with CONSTANT velocity.


That is the case when you are talking about instantaneous speed and velocity - or when the velocity is constant. In the case of an average speed and velocity, this relation does not hold.


For example, an object goes in a circle, at a speed of 50 km/hour. The average speed is 50 km/hour; the average velocity is zero.


Velocity is speed and its direction. Average velocity is average speed and its direction.


velocity is a vector and speed is scalar. Velocity has magnitude and directions, with magnitude being speed. The magnitude of average velocity and average speed is the same.


As long as there is no change in direction then they are effectively the same.


no its a vector quantity,not a scalar quantity,bcz still it z a velocity bt NT a speed On a typical journey the average velocity is the straight-line distance between the start and finish, divided by the time taken, and it also has a direction. The average speed is the actual distance run, divided by the speed. The average speed might not be equal to the magnitude of the average velocity. For example on a round trip the average speed might be 40 mph, while the average velocity is zero.


Direction. Velocity has speed and direction


The magnitude of the velocity is always equal to the speed. But velocity is a vector quantity (has a magnitude and direction) while speed is just a scalar quantity (only magnitude). So velocity and speed are never equal.


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.


Velocity is a vector. The magnitude of the velocity - its absolute value - is its speed.


YES!!!!!!!!!!!! A body can have equal velocity and speed at the same time. for suppose a body is travelling at 20m/s in north direction then the speed of the body is also equal to 20m/s. hence speed and velocity are equal in this case.


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.


yes, velocity is speed with direction; average speed has no direction, bit average velocity does


speed and velocity becomes equal when a body is moving on a straight road without changing its direction.


the instantaneous velocity or speed is the speed a body travels at a particular and average velocity is the total distance an object


Because velocity is a measurement of change of speed rather than an average constant speed. To get the average speed (as you rightly said) - you divide the total distance travelled by the time taken. The average velocity is the change in speed over time (either an increase or decrease).


An object moving in a circular path at constant speed will have a non-zero average speed and zero average velocity since velocity is a vector parameter,


Speed is the size of velocity. But velocity also has a direction. "30 miles per hour" is speed. "30 miles per hour north" is velocity.


Speed is the size of velocity. But velocity also has a direction. "30 miles per hour" is speed. "30 miles per hour north" is velocity.


If the car has an average speed of 65 mph, when it returns to its starting point, it will have a displacement of zero and an average velocity of zero, because velocity has both speed and direction.


Velocity is a vector, which means it has a direction, but speed isn't. Speed is the absolute value of velocity. Velocity can be negative, meaning that the speed is opposite to the direction that you're calling the positive direction.


Velocity is equal to the change in distance divided by the change in time. Speed is the magnitude of velocity


When an object is moving along a straight line at a variable speed, we can express the magnitude of the rate of motion in terms of average velocity.It is the same way as we calculate average speed.


No. Average velocity is still a velocity.Distance is a product of (a velocity or speed) times (a length of time).



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