Which statement best describes why a machine is useful?

Hello. This question is incomplete. The full question is:

"Which statement best describes why a machine is useful?  A-A machine does a greater amount of work than the amount of work that is done on it.  B-A machine does a smaller amount of work than the amount of work that is done on it.  C-A machine can decrease both the input force and the input distance needed to do a given amount of work.  D-A machine can decrease either the input force or the input distance needed to do a given amount of work."

D-A machine can decrease either the input force or the input distance needed to do a given amount of work.

Explanation:

A machine is a device that uses energy and work to achieve a predetermined goal. In Physics, any device that changes the direction or intensity of a force with the use of work. In summary, we can say that what best describes why a machine can decrease the input force or the input distance needed to perform a certain amount of work, for this reason, the machine is useful.

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.