Kinetic Energy
Estimate Kinetic Energy by entering power ratings and usage hours. Get daily, monthly, and annual energy figures alongside cost and emissions estimates.
Formula
KE = ½mv²
Kinetic Energy equals one half of the mass times the velocity squared.
Worked Examples
Example 1: Car on Highway
Problem:1500kg car at 25m/s
Solution:0.5 * 1500 * 25^2
Result:468,750 J
Frequently Asked Questions
What is kinetic energy?
Kinetic energy is the energy an object possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
What is the formula for kinetic energy?
KE = ½mv², where m is mass and v is velocity.
What units is kinetic energy measured in?
The standard unit is the Joule (J). 1 Joule = 1 kg·m²/s².
Can kinetic energy be negative?
No, kinetic energy is always non-negative because mass is positive and velocity squared is positive.