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What is the effect on accelerationif we decreasing velocity?
If velocity is decreasing, acceleration is in the opposite direction of the initial velocity. If the velocity is decreasing at a constant rate, the acceleration is negative, causing deceleration. If the velocity is decreasing while changing direction, the acceleration may be a combination of negative and positive components.
Differentiate positive acceleration and negative acceleration?
A positive acceleration is a change in velocity such that the latter velocity is greater than the former velocity and is therefore going fasterwhile a negative acceleration or deceleration is a change in velocity such that the latter velocity is lesser than the former velocity and is therefore going slower.Now let us look at the equation of a uniform acceleration (the change in velocity is uniform):a = (vf-vi)/sIf the final velocity is greater, you will have a positive acceleration. If the initial velocity is greater, you will have a deceleration.
Can an object's acceleration be a negative number?
Yes, an object's acceleration can be a negative number if it is experiencing deceleration or moving in the opposite direction of its positive acceleration. Negative acceleration represents a decrease in velocity over time.
What tells how velocity changes?
Acceleration tells how velocity changes. If the acceleration is positive, the velocity is increasing; if it is negative, the velocity is decreasing. The equation that relates them is v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.
How can you identify how quickly speed is changing?
You can identify how quickly speed is changing by calculating acceleration, which is the rate of change of speed over time. Acceleration can be calculated using the formula: acceleration = (final speed - initial speed) / time. A positive acceleration indicates speeding up, while a negative acceleration indicates slowing down.
What is the effect on accelerationif we decreasing velocity?
If velocity is decreasing, acceleration is in the opposite direction of the initial velocity. If the velocity is decreasing at a constant rate, the acceleration is negative, causing deceleration. If the velocity is decreasing while changing direction, the acceleration may be a combination of negative and positive components.
Differentiate positive acceleration and negative acceleration?
A positive acceleration is a change in velocity such that the latter velocity is greater than the former velocity and is therefore going fasterwhile a negative acceleration or deceleration is a change in velocity such that the latter velocity is lesser than the former velocity and is therefore going slower.Now let us look at the equation of a uniform acceleration (the change in velocity is uniform):a = (vf-vi)/sIf the final velocity is greater, you will have a positive acceleration. If the initial velocity is greater, you will have a deceleration.
Can an object's acceleration be a negative number?
Yes, an object's acceleration can be a negative number if it is experiencing deceleration or moving in the opposite direction of its positive acceleration. Negative acceleration represents a decrease in velocity over time.
When an object's final velocity is less than its initial velocity it has what kind of acceleration?
Negative acceleration.
Explain the difference between positive and negative acceleration?
well the difference between positive and negative velocity would have to be that if your motion speeds up than you have a positive and when or if your motion slows down then you would have a negative accelerarion!!!!
What tells how velocity changes?
Acceleration tells how velocity changes. If the acceleration is positive, the velocity is increasing; if it is negative, the velocity is decreasing. The equation that relates them is v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.
Which is greater in positive acceleration initial or final velocity?
In positive acceleration, the final velocity is greater than the initial velocity. This is because acceleration is the rate of change of velocity, so as time progresses, the velocity increases due to the acceleration.
What is the significance of negative values on projectiles?
None, really. A projective is usually an object that is incapable of self-propulsion, and which is launched by an initial force. From that point on, it is acted upon by gravity (and if you are more advanced, by air resistance). Because of these forces, an object that is launched in an upward-sloping direction eventually starts moving downwards. The decision to call the upward direction the positive (initial motion is positive but acceleration is negative) or as negative (initial motion is negative but acceleration is positive) is purely arbitrary. Moreover, there are not even conventions on this matter because there are cases where one or the other option has minor arithmetical advantages. No significance can be attached to something that is based on an arbitrary decision.
How can you identify how quickly speed is changing?
You can identify how quickly speed is changing by calculating acceleration, which is the rate of change of speed over time. Acceleration can be calculated using the formula: acceleration = (final speed - initial speed) / time. A positive acceleration indicates speeding up, while a negative acceleration indicates slowing down.
When an object's initial velocity is less than its final velocity what does that indicate?
AccelerationWhen the velocity of an object increases or decreases, that means it has accelerated. Acceleration is defined as the rate of change of velocity.If an object's final velocity is greater than its initial velocity, that indicates positive acceleration. If an object's final velocity is less than its initial velocity -- if, say, it slows down and comes to a stop -- then that indicates negative acceleration. Deceleration is another way of saying negative acceleration. But . . .It is good idea to avoid using the term deceleration, because an object that is experiencing negative acceleration may slow down, come to a stop momentarily, and then reverse direction and speed up -- IN THE OPPOSITE DIRECTION!You can think of it this way: When an object is slowing down, its acceleration is in the direction opposite to its motion. We think of that as negative acceleration.
Does a negative acceleration always mean a decrease in speed?
Not necessarily. Negative acceleration indicates a decrease in velocity, which can either mean a decrease in speed or a change in direction depending on the initial velocity and the direction of the acceleration.
When final velocity is less than initial velocity is an example of?
Deceleration (or negative acceleration).
