Question

an object of mass 20kg is dropped from a height of 4m.what would be the addition of kinetic energy and potential energy when body is half down​

Answer 1

Answer:

The sum of an object's potential and kinetic energies is called the object's mechanical energy. As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy. Another important concept is work.