trying to suncrew a nut requoires a spanner, it is common knowledge that the LONGER TH SPANNER the easier it is - this is becasue LESS force is required.
Unscrewing this nut is known as a turning force and the turning effect of the force is called the moment.
This can be increased by:
- increasing the size of the force
- using a longer instrument
the push is of the force applied is called effort when trying to ift ofjects, the LOAD around the PIVOT
equation =
MOMENT = FORCE X PERPENDICULAR DISTANCE FROM PIVOT
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