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That would be the case if the object moved only among a straight line, and only in one direction (i.e., it didn't move back and forth).

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Q: Under what conditions is the magnitude of a average velocity of an object equal to its average speed?
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What is the difference between the velocity and the magnitude of the velocity of an object?

The velocity of an object has two attributes, 1. its magnitude and 2. its direction. The difference betwen the velocity and the magnitude of the velocity is the direction!


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.


Rate of change of the velocity of an object?

The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".


What condition average speed is equal to average velocity?

1. magnitude of distance covered is equal to the magnitude of displacement. 2. the motion of the object is in a straight line i.e. in a particular direction.


What the definitioin of speed?

The definition of speed is the size/magnitude/measure of an object's velocity. Average speed = distance divided by time


When you know the speed and the direction of an object's motion you know what?

The magnitude and direction of the object's velocity vector.


When does an object undergoes acceleration?

Acceleration is the change in velocity of an object over time. Take note that velocity is a vector quantity which means that it has magnitude and direction...Thus...An object undergoes acceleration when:1. there is a change in the magnitude of the velocity (speed) of an object.2. there is a change in direction of an object.3. it changes both in direction and magnitude.


What is the rate at which the velocity of an object changes?

That's the magnitude of its acceleration.


What happens to an object's velocity when it accelerates?

"Acceleration" implies that the velocity changes.


Can an object change its direction when the magnitude of its velocity is zero?

If the velocity is zero, the object is not moving. So if it moves at all, it is changing direction.


How would you differentiate between speed and velocity?

Speed is the magnitude of distance travelled per unit time, whereas velocity depends on the magnitude of distance travelled as well as the direction of motion. Speed is a scalar quantity, velocity is a vector. Speed cannot be negative, velocity can be negative. Average speed of an object after travelling a certain distance is always non-zero, but for velocity the average velocity can be zero (this follows from the previous idea).


When is the average velocity equal to average of velocity for an object?

Always.