Kinetic energy is the energy pocessed by a body due to its motion.
For a body to move need force/we have to do work upon it .this work is developed as kinetic energy in a body.
just like any other energy we can convert this energy to any other form of energy.
Eg:- For instance, a moving car may hit a stationary person and then the kinetic energy of the car gets transferred into the person’s body.
Kinetic energy of a body is directly proportional to mass of the body&square of the velocity of the body. (Experimentally proved case).
K.E =1/2×m×v^2.
To know more about KE & problems based on it you can check this link.
https://byjus.com/physics/kinetic-energy/?utm_source=Google&utm_medium=cpc&utm_campaign=K12-Traffic-DynamicSearch-India-2&gclid=Cj0KCQjw_7HdBRDPARIsAN_ltcLHaZB8g7FvVi6Sfrcxh4aUrkZS6D9q6BNC0fLgJtxdZ0pGK9JFaYEaAscTEALw_wcB
hope you understood well.if you have any other doubt put a new question