Question

The force p on the handle of the positioning lever---------------

Answer 1

When applying force to the handle of a positioning lever, it is important to consider the position of the force relative to the pivot point. There are three possible ways to apply the force: perpendicularly to the lever arm, parallel to the lever arm far from the pivot point, or parallel to the lever arm close to the pivot point.

Step-by-step explanation:

When applying force to the handle of a positioning lever, it is important to consider the position of the force relative to the pivot point. There are three possible ways to apply the force:

1. Perpendicular to the lever arm: The force should be applied perpendicularly to the lever arm as far as possible from the pivot point. This maximizes the torque and allows for greater leverage.
2. Parallel to the lever arm, far from the pivot point: The force should be applied parallel to the lever arm as far as possible from the pivot point. This also maximizes the torque and leverage.
3. Parallel to the lever arm, close to the pivot point: The force should be applied parallel to the lever arm as close as possible to the pivot point. This reduces the torque and leverage.