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Question

The lever for which the mechanical advantage is less than 1 has the :

(a) fulcrum at the midpoint between the load and effort.

(b) load between the effort and fulcrum.

(c) the effort between the fulcrum and load.

(d) load and effort acting at the same point.


Solution

(c) the effort between the fulcrum and load


The class 3 lever always has a mechanical advantage of less than 1, because the load travels a greater distance than the force travels. Consequently, the work requires more effort than would ordinarily be needed.
selina-icse-solutions-class-10-physics-machines-3a-29
 


Physics
Concise Physics
Standard X

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