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If you have an initial and final velocity and time you can figure it out with this equation, Vf squared=Vi squared1/2a(t squared) If you don't have those you cannot find acceleration.

However the acceleration on Earth is a constant -9.81

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Q: How do you find acceleration if only given a velocity?
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How do you find acceleration when given only mass and velocity?

You can't. Acceleration is change in velocity. If given a constant velocity, the acceleration is zero.


How do you find the initial velocity given only the distance and the time traveled?

You can't. You need either the final velocity or the acceleration of the object as well, and then you can substitute the known values into a kinematics equation to get the initial velocity.


What is the acceleration in science if you know average speed and time?

If you know average speed then you cannot determine the acceleration: the very nature of being a average hides all the increases and decreases in speed which are the accelerations (technically, acceleration is change of speed in a direction). All average speed tells you is the constant speed at which you require to travel to cover the given distance in the given time; as the speed is constant, the acceleration is zero.


How do you find acceleration falling object with only speed and distance?

a = (v2 - u2)/2s where a is the acceleration between the initial point in time and the final point in time, u is the initial velocity v is the final velocity s is the distance travelled


How can you find velocity from only force and mass?

You would need to use the equation f=ma In this equation, f means force, m means mass, and a means acceleration. So dividing the force by the mass will give you a figure for acceleration. If you know how long the object has been accelerating for, or how far, and what the initial velocity was (or whether it started off still) then you can work out the velocity from this acceleration.

Related questions

How do you find acceleration when given only mass and velocity?

You can't. Acceleration is change in velocity. If given a constant velocity, the acceleration is zero.


How do you find velocity with no acceleration or time?

Velocity can only be identified by acceleration or time, even though we can also find it using force


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)


How do you find the acceleration and initial velocity given only the distance and time?

If you are only given total distance and total time you cannot. If you are given distance as a function of time, then the first derivative of distance with respect to time, ds/dt, gives the velocity. Evaluate this function at t = 0 for initial velocity. The second derivative, d2s/dt2 gives the acceleration as a function of time.


How do you find the initial velocity given only the distance and the time traveled?

You can't. You need either the final velocity or the acceleration of the object as well, and then you can substitute the known values into a kinematics equation to get the initial velocity.


Three things that can be acceleration?

Only one thing can be acceleration; the changing velocity of any given object. That's what acceleration is. Acceleration is caused by a net force on the object.


How do you find the distance if only the final velocity and the acceleration is given?

If you take initial velocity(Vi) to be zero and the final velocity (Vo) to be a known. Puting the knowns into a triganonomical equation and solving for the value of D would give an answer


How do you calculate acceleration if only velocity is given?

Acceleration is a change in velocity over time - (change in velocity) / (time difference). So, you basically need two velocity measurements (or two assumed velocities), and the time difference between the measurements.


Acceleration occur when velocity changes?

Only the acceleration brings a change in velocity.


Why is it that their is an acceleration when a car is moving?

There is only acceleration if the car's velocity changes. If it moves at a constant velocity, then there is no acceleration.


What is the expression for average acceleration?

Acceleration = Change in velocity divided by the change in time. This formula only works if velocity is constant. If velocity is not constant, find the acceleration for both points in time. Then add the two accelerations and divide by 2.


How do you find the distance given only the initial velocity traveled time and final velocity?

You can only know the distance for sure if acceleration or deceleration is constant. Add the start and end velocities and divide by two and then multiply by the time to get your distance.