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How is the motion of a positiveveloctity different from a motion of an object with a negative velocity?
Wiki User
∙ 8y ago
the motion is in opposite direction
Wiki User
∙ 8y ago
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Can momentum have a negative velocity?
No, momentum can not have a negative velocity. Velocity is the rate of motion of a body from one position to another position in a particular direction. Bodies traveling in opposite directions may appear to have a negative velocity in relationship to each other but any amount of velocity is positive.
What is the definition of negative velocity?
Observe that the object below moves in the negativedirection with a changing velocity. An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration).
How is velocity of zero different from an accerlation at zero?
Acceleration is changing velocity. Zero velocity means no motion. Zero acceleration means constant, unchanging motion.
When is acceleration neg?
Acceleration is negative if velocity is decreasing with time. Since velocity is a vector this can occur in one of two ways: 1) you are slowing down in the direction of motion and the velocity in that direction is defined as positive (this is what we usually mean by negative acceleration) 2) you are speeding up in the direction of motion and the velocity in that direction is defined as negative. An example of this is an object launched into the air which immediately starts to decelerate in it's upward velocity, reaches it's highest velocity, and then begins accelerating towards the ground. If we call the velocity upward a positive velocity, then when it starts falling, it has negative velocity. Note that acceleration (due to gravity) is negative the whole time.
When velocity is zero and acceleration is negative what happens to an object's motion?
At that moment, the object isn't moving - but since the velocity is changing, it soon will.
How is motion demonstratd with snowboarding?
Snowboarding demonstrates speed, velocity, and acceleration. It can also demonstrate a positive or negative value for velocity and acceleration.
Do Both speed and acceleration include the direction of an object's motion?
No. The velocity of an object is how fast it is moving as well as the direction of the motion. So when considering one dimension, the velocity can be positive or negative. The speed of the object is simply the magnitude (absolute value, in the case of one dimension) of the velocity, with no direction. Acceleration is the change in velocity and does include direction. So if an object has a positive velocity (in one dimension) and its speed increases, the acceleration is negative. However, if the speed of an object moving the negative direction increases, then the acceleration is negative, because the velocity becomes "more negative."
What is the term to describe motion when different observers see the same motion differently?
Relative velocity/motion
When velocity is negative and acceleration is positive what happens to an objects motion?
Its slowing down (but still moving).
When a car's velocity is negative and its acceleration is positive what is happening to the car's motion?
The car is slowing down
When a car's velocity is positive and it's acceleration is negative what is happening to the car motion?
The car is slowing down
When velocity is zero and acceleration is negative what happens to the object in motion?
It accelerates in the opposite direction. Its velocity increases in the opposite direction to the direction that has been assigned positive.
