Final answer:
When a nonconservative force does work on an object, it typically results in a loss of kinetic energy from the system, without an associated gain in potential energy.
Step-by-step explanation:
Effect of Nonconservative Forces on Mechanical Energy
When a nonconservative force does work on an object, it has the effect of either adding to or removing mechanical energy from the system. Nonconservative forces, such as friction, cause energy to dissipate from the system, typically as thermal energy, which is not easily recoverable. Thus, when a nonconservative force does work, it can decrease the system's kinetic energy or potential energy, depending on the specific circumstances and forces involved. Since nonconservative forces dissipate mechanical energy without the possibility of full recovery, the work done by a nonconservative force will reduce the total mechanical energy of a system.
In the case presented, the work done by a nonconservative force is not associated with a gain in potential energy. Therefore, Option 2: Lose kinetic energy and Option 4: Lose potential energy are the options that can be considered correct. However, without additional context, the most accurate answer to provide would be Option 2: Lose kinetic energy, as this is a common consequence of work done by nonconservative forces such as friction in many practical scenarios. It's important to note that losses in potential energy can occur, but they are generally associated with a different set of scenarios from those implied by the original question.