Enter the initial kinetic energy (J) and the final kinetic energy (J) into the calculator to determine the Work From Kinetic Energy.

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## Work From Kinetic Energy Formula

The following formula is used to calculate the Work From Kinetic Energy.

**W = ΔKE = KEf – KEi**

- Where W is the Work From Kinetic Energy (Joules)
- KEi is the initial kinetic energy (J)
- KEf is the final kinetic energy (J)

## How to Calculate Work From Kinetic Energy?

The following two example problems outline how to calculate the Work From Kinetic Energy.

**Example Problem #1:**

- First, determine the initial kinetic energy (J). In this example, the initial kinetic energy (J) is given as 50.
- Next, determine the final kinetic energy (J). For this problem, the final kinetic energy (J) is given as 100.
- Finally, calculate the Work From Kinetic Energy using the equation above:

W = ΔKE = KEf – KEi

Inserting the values from above and solving the equation with the imputed values gives:

W = ΔKE = 100-50 = 50 (Joules)

**Example Problem #2: **

Using the same process as above, first define the variables required by the formula. In this case, these values are:

initial kinetic energy (J) = 25

final kinetic energy (J) = 150

Entering these values yields:

W = ΔKE = 150 -25 = 125 (Joules)