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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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13y ago

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Related Questions

How do you calculate an objects 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)


What is the final velocity of two objects after an elastic collision?

In an elastic collision, the final velocity of two objects can be calculated using the conservation of momentum and kinetic energy principles. The final velocities depend on the masses and initial velocities of the objects involved in the collision.


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

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


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

When calculating acceleration to find the change in velocity, you subtract the initial velocity from the final velocity. The formula for acceleration is: acceleration = (final velocity - initial velocity) / 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.


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

You can use the equation: Displacement = (final velocity squared - initial velocity squared) / (2 * acceleration). Plug in the values of final velocity, initial velocity, and acceleration to calculate the displacement.


How do you calculate the change in velocity of an object?

To calculate the change in velocity of an object, you subtract the initial velocity from the final velocity. The formula is: Change in velocity Final velocity - Initial velocity.


What information do you need in order to find a object's acceleration?

To find an object's acceleration, you need its initial velocity, final velocity, and the time it takes to change from the initial velocity to the final velocity. The formula for acceleration is (final velocity - initial velocity) / time elapsed.


To find acceleration you subtract what?

To find acceleration, you subtract the initial velocity from the final velocity and then divide by the time taken to achieve the change in velocity. The formula for acceleration is (final velocity - initial velocity) / time.


What is 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


What does it mean when final and initial velocity are the same?

When the final and initial velocities are the same, it means that the object's velocity hasn't changed over time. This could indicate that the object is at rest or moving at a constant speed in a straight line.