0
We assume you mean the work done in order to change the velocity of the moving mass.
Easiest way is to calculate the change in the kinetic energy of the moving mass, and realize
that it's equal to the amount of work either put into the motion of the mass or taken out of it.
Initial kinetic energy = 1/2 m Vi2
Final kinetic energy = 1/2 m Vf2
Change in kinetic energy = 1/2 m ( Vf2 - Vi2) <== that's the amount of work involved.
If the final velocity is greater than the initial velocity, the change in kinetic energy is positive,
and represents work done by the pusher to speed up the mass.
If the final velocity is less than the initial velocity, the change in kinetic energy is negative, and
represents work done by the mass and absorbed by the pusher, as the mass slowed down.
What else can I help you with?
How do you find a final velocity without distance but given time?
Without distance, you have to know time, initial velocity, and acceleration, in order to find final velocity.
How do you find acceleration with velocity given?
Use the formula Acceleration = (final velosity - initial velocity)/ time.
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 final Velocity of an object?
The final velocity is (the initial velocity) plus (the acceleration multiplied by the 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.
How to find the final velocity when given the acceleration and time?
To find the final velocity when given the acceleration and time, you can use the formula: final velocity initial velocity (acceleration x time). Simply plug in the values for acceleration and time, and calculate the final velocity.
How do you find a final velocity without distance but given time?
Without distance, you have to know time, initial velocity, and acceleration, in order to find final velocity.
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
How do you find final speed if acceleration time and beginning velocity is given?
You can find the final speed by using the formula: final speed = initial velocity + (acceleration * time). Plug in the given values for initial velocity, acceleration, and time into the formula to calculate the final speed.
How do you find final and initial velocity?
You use the information you're given, along with the equations and formulas you know that express some kind of relationship between the information you're given and the initial and final velocity.
How to find the change in velocity in a given scenario?
To find the change in velocity in a given scenario, subtract the initial velocity from the final velocity. The change in velocity is the difference between the two velocities.
How do you find acceleration with velocity given?
Use the formula Acceleration = (final velosity - initial velocity)/ 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.
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 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.
How do you find the initial velocity just with the accelaration final velocity and time?
To find acceleration, you take Vi [Initial Velocity] and you subtract if from Vf [Final Velocity.] (Vi - Vf) If they Vi and Vf are already given, you take the two givens and you subtract them from each other. Vi minus Vf. Do not do Vf minus Vi or it will be wrong. After you do that, you divide your answer from T [Time] (Vi - Vf) a= _____ t Once you get your answer, that will be your 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.
