Question

Describe knife in simple machines manner I'll mark u brainliest​

Answer 1

Answer:

A knife is an example of a simple machine called a wedge.

A wedge is made up of two inclined planes placed back to back to form a sharp edge. When the edge is placed between two objects and force is applied, the wedge drives the objects apart.

Answer 2

Answer and Explanation:

A knife is representative of a wedge. A wedge is essentially two inclined planes put together. The blade of a knife has the property of being two inclined planes put together to form a pointed edge. Like all wedges, a knife is used to make the work of pushing objects apart more efficient. The knife accomplishes this by changing the direction of the force to be in a downward direction instead of a horizontal direction. A downward direction is more efficient than a horizontal direction because it works alongside gravitational force.