Respuesta :

Answer:

1. A sharp knife cuts more effectively than a blunt knife as it has a very small surface area and exerts more pressure. 2. A nail has a pointed edge so that it exerts more thrust or pressure. are two example where factor area practcally used to increase pressure.

mistressofdark

1. A nail has a sharp tip with very less surface area to increase pressure and make it easy to use it.

2. A knife is sharp with less surface area to increase pressure and make it easier to cut.

Because

[tex]pressure = \frac{force}{surface \: area} [/tex]