1.

Which has mechanical advantage less than 1; a pair of scissors or a pair of pliers

Answer»

A pair of scissors MUST have its MA less than 1, as it doesn't multiply force, instead its blades must cut the material FAST.
A pair of PLIERS must have its MA more than 1, as it needs to multiply force, so that a NAIL can be pulled out by applying relatively less force (just an example).



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