Asked Jan 1, 2020

Classify the following into levers as classI, class II, class III: (a) a door , (b) a catapult, (c) a wheel barrow , (d) a fishing rod


Expert Answer

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A lever is a rigid bar which is rotating around a pivot point called fulcrum. It is mainly used to move a load or for doing any work. To the one part of the lever effort is applied and it helps to push the load to the other end. In order to feel effortless while moving a load, lever is the one which is mainly used.

There are three ...

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