Question

What Is Work Energy Theorem?

Answer 1

it's about the change in the kinetic energy of the object
the formula for work energy
theorem is the KE=1/2mv^2

Answer 2

When we move an object we increase its kinetic energy, which is known as 'energy of motion.' When we bring a moving object to rest, we also do work on the object, but in this case we are decreasing its kinetic energy. Regardless of whether we are increasing or decreasing an object's kinetic energy, the amount of work done is equal to the change in energy. This is an necessary relationship known as the work-energy theorem.
kinetic energy=1/2×mass×velocity^2