Question

Which has a greater mechanical advantage, a wedge that is 6 cm long and 3 cm wide, or a wedge that is 12 cm long and 4 cm wide?

Answer 1

The mechanical advantage of a wedge is

`MA="its length"/"its width"`

So `"MA of 1st wedge" =6/3=2`

`"MA of 2nd wedge" =12/4=3`

Hence 2nd wedge has greater MA.