What lever does nail clippers belong to?
Use a nail clipper to cut nails, OBD lever under pressure down in the B F1, the resistance F2 at point D, the fulcrum for O. OBD analysis of lever force, and draw the diagram: it can be seen from the figure: the power arm is smaller than the resistance arm, therefore, is laborious lever OBD lever.
The force of the lever ABC is analyzed and a schematic diagram is drawn: from the diagram it can be seen that the power arm is larger than the resistance arm, so the lever ABC is a labor-saving lever;
Use a nail clipper to cut nails, OED by the lever upward pull F1 column activities in E, the resistance F2 at point D, the fulcrum for O. OED analysis of lever force, and draw the diagram: it can be seen from the figure: the power arm is smaller than the resistance arm, therefore, leverage OED for the fee of force of the lever.
