Sagot :
Answer:
D.
Explanation:
Fulcrum:The fulcrum is the point on which the beam pivots. When an effort is applied to one end of the lever, a load is applied at the other end of the lever. This will move a mass upward. Levers rely on torque for their operation.
What are the examples simple machine?
Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever