When work is done on a body by an external force, its
When work is done on a body by an external force, its
Only kinetic energy increases
Only potential energy increases
Both kinetic and potential energies may increase
Sum of kinetic and potential energies remains constant
When work is done on a body by an external force, its
An external force can change the kinetic energy or potential energy of an object without doing work on the object$-$that is, without transferring energy to the object. Instead, the force is responsible for transfers of energy from one type to another inside the object.