What is the SI unit of kinetic energy?
The SI (International System of Units) unit of kinetic energy is the joule (symbol: J). Kinetic energy is a measure of the energy possessed by an object due to its motion, and it is defined in terms of mass (in kilograms) and velocity (in meters per second) using the following formula:
Kinetic Energy (KE) = (1/2) * mass (m) * velocity (v)^2
In this formula:
- Kinetic Energy (KE) is measured in joules (J).
- Mass (m) is measured in kilograms (kg).
- Velocity (v) is measured in meters per second (m/s).
So, when mass is expressed in kilograms and velocity in meters per second, the resulting kinetic energy will be in joules. The joule is the standard unit for various forms of energy in the SI system, including kinetic energy.
