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Answered 2012-01-21 02:44:12
Acceleration

When 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.

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Can the effect of initial velocity on final velocity be predicted?

Well, (final velocity) = (initial velocity) + (acceleration x time)


What is the Formula in Final Velocity?

Final velocity = (Initial velocity) + (time)(acceleration)


What is the formula for calculating final velocity when you know the initial speed and the acceleration?

the formula for finding acceleration is final velocity, minus initial velocity, all over time. So if you have the acceleration and initial speed, which is equal to the initial velocity, you must also have time in order to find the final velocity. Once you have the time, you multiply it by the acceleration. That product gives you the difference of the final velocity and initial velocity, so then you just add the initial velocity to the product to find the final velocity.


What is the difference between final and initial velocity?

"Initial" means the velocity it had when you started looking at it. "Final" means the velocity it had when you were finished looking at it.



How do you find accelertaion when initial velocity final velocity and time are given is?

If you know the initial and final velocity you can determine the acceleration (Velocity final- Velocity initial)/time = acceleration This can also be seen by integrating the acceleration. In this case lets assume acceleration is constant, then: acceleration=C Integration from time=initial to time=final gives C*(time final-time initial)=velocity final-velocity initial This integration scheme can also work if acceleration is not constant. In this case you must know how acceleration or velocity changes with time.


How do you find displacement when you only have acceleration initial velocity and final velocity?

Kinematics. Final velocity squared = initial velocity squared + 2(gravitational acceleration)(displacement)


What is the acceleration of a body moving with uniform velocity?

zero because the initial and final velocity is constant . so,difference bet. final velocity and initial velocity is zero


How do you find distance when given initial velocity final velocity and acceleration?

Distance = |(v2 - u2)/(2a)| where initial velocity = u final velocity = v accelaration = s


How do you find final Velocity of an object?

The final velocity is (the initial velocity) plus (the acceleration multiplied by the time).


Equation for acceleration?

(Final Velocity - Initial Velocity) / Time


What is the equation for acceleration?

Final Velocity- Initial Velocity Time


Can an objects acceleration be a negative number?

Yes it can be.When a body has its initial velocity greater than its final velocity, then the body can have negative acceleration since acc.=change in velocity/time


How do you find the final velocity given only distancetimeand initial velocity?

v = 2s/t - u where u=initial velocity, v=final velocity, s = distance and t = time



What would be true of the values for initial velocity and final velocity if the acceleration were zero?

A change in velocity can be effected only by acceleration. Therefore, if the acceleration is zero, there is no change, so final velocity equals initial velocity.


How do you calculate an object's acceleration?

Acceleration is an object's change in velocity divided by its change in time. So: acceleration=(final velocity - initial velocity)/(final time - initial time)


When calculating acceleration to find the change in velocity you subtract the what velocity from the final velocity?

You subtract the initial velocity from the final velocity and divide by the time interval.


How do you find the initial velocity just with the accelaration final velocity and time?

Velocity = Initial velocity + (Acceleration)(Time) V = Vi +at Solve for Vi


In what way does the initial velocity affect acceleration?

Acceleration is equal to final velocity minus initial velocity over time. So, it will affect the outcome of the equation depending on what the initial velocity is.


How will the final velocity be greater then the initial velocity?

It doesn't necessarily mean that the final velocity is always greater than the initial, if the initial velocity was at rest or 0 m/s then any form of movement would be greater. In cases where the final is smaller is like running into a wall or a decrease in acceleration.


What do you need to know in order to measure acceleration?

force and mass. acceleration=force divided by mass or the time, final velocity, and initial velocity. acceleration= final velocity minus initial velocity diveded by time


How do you find distance with uniform velocity time final velocity and initial velocity?

If the velocity is uniform, then the final velocity and the initial velocity are the same. Perhaps you meant to say uniform acceleration. In any event, the question needs to be stated more precisely.


In the acceleration equation what do v1 and v2 represent?

v1 = initial velocity v2 = final velocity



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