14. What is a lever? State its principle. Pg. 419
35. Derive the relationship between mechanical advantage, effort arm and load arm.
16. How are different types of levers classified?
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Answer:
14. A lever is a simple machine.
35. Mechanical advantage is ratio of load to effort also it is ratio of effort arm to load arm.
Explanation:
16. There are 3 types of lever:
Type one has pivot or fulcrum between load and effort.
Type two has load between pivot and effort.
Type 3 has effort between pivot and load.
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