Question
Download Solution PDFThe effort in a class 1 lever is in __________ direction(s).
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
- A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum, used to transfer a force to a load and usually to provide a mechanical advantage.
- On the basis of the locations of fulcrum, load, and effort, the lever is divided into three types.
First Class Lever
- First-class levers have the fulcrum between the force and the load.
- Effort and the load move in opposite directions.
- The effort in a class 1 lever is in one direction.
- Examples: See-saw, crowbar, scissors, claw and hammers, the handle of water pump, a beam balance, wire cutter, plier, etc.
Second-class lever
- In second-class levers, the load is between the effort (force) and the fulcrum.
- Effort and the load moves in the same direction.
- Examples: Wheelbarrow, Staplers, Bottle openers, Nutcrackers, and Nail clippers.
Third-class lever
- In third-class levers, the effort is between the load and the fulcrum.
- Effort and the load moves in the same direction.
- Examples: Fishing rod, Broom, Baseball bat, Bow and Arrow Human jaw.
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