To measure the velocity of an object, we do not directly use a specific type of energy. Velocity is a measure of the rate at which an object changes its position with respect to time, and it is not directly related to energy.
Velocity is typically determined by measuring the displacement of an object over a specific time interval. The displacement refers to the change in position of the object, which is often measured in units of length (such as meters or centimeters). Time is measured using clocks or other time-keeping devices.
Energy, on the other hand, is a different physical quantity that represents the ability of an object or a system to do work. It can exist in various forms such as kinetic energy (associated with motion), potential energy (associated with position or configuration), thermal energy (associated with heat), and many others. While energy can affect an object's motion, it is not directly used to measure velocity.