Question

doorknok is an example of​

Answer 1

I'm not sure if you meant to type doorknob or not. I'm sorry.

There are six basic types of machine which are screw, wheel and axle, lever, pulley, inclined plane and wedge. ... A door knob has an axle in the middle with a wheel. Therefore, a doorknob is an example of a simple machine and not a screw.

Explanation: