Thursday, June 27, 2013

Is a pick axe a lever? If so, where is its fulcrum located? What class of lever is it (1st, 2nd, or 3rd)?

The pickaxe is a lever of the third kind. When a pickaxe
has to be used it is held with the hands, one hand is placed at the center of the handle
to hold it there and the other is used to hold one end of the handle. The load or
resistance lies at the end opposite to where the handle has been held. The hand
supporting the handle at the end acts as the fulcrum and the hand holding the handle at
the center is used to apply the force. This moves the opposite end towards the load
which has to be cut or split.


At the end that strikes the
load a wedge made of metal is fixed. The wedge allows the load to be pierced or split
depending on its shape.

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