There is more surface area so the force is spread out more
area of the edge of the blade is smaller for a sharp knife. so for the same force the pressure under the blade will be greater and smaller force required to give the same pressure.
A sharp knife has a thinner blade that exerts more concentrated cutting force, making it easier to slice through vegetables without applying excessive pressure. A blunt knife, on the other hand, requires more force to cut, increasing the risk of slipping and causing accidents. Additionally, a sharp knife produces cleaner cuts, resulting in less damage to the cell walls of the vegetables and a reduced loss of nutrients and juices.
A sharp axe has a thinner edge that can easily penetrate and split the wood fibers, requiring less force to chop. On the other hand, a blunt axe has a thicker edge that crushes and pushes the wood fibers aside rather than cutting them cleanly, making it more difficult to chop through wood.
A sharp nail has a smaller surface area, allowing it to penetrate the wood more easily. The smaller cross-section reduces the amount of wood fibers that need to be displaced, making it easier to drive the nail in.
If the stick is just sitting there, it doesn't exert any force at all. If you're swinging the stick, the shape of the stick won't matter much; the force will be determined by the speed and mass of the stick. If you are poking with the stick, then the FORCE will be the same whether it is blunt or pointed - but a pointed stick will concentrate the force into a smaller AREA, so the force per area will be a lot higher with a sharp stick than with a blunt one.
It's sharp - to help it pass through material without causing much damage. A sharp needle will only leave a tiny hole - while a blunt one might tear the fabric.
as the surface area is less i.e. the lesser the surface area the more is the pressure. an example is that an apple is easier to cut with the knife that has a sharp tip than a blunt knife
Blunt weapons have more force, whereas sharp weapons channel the force into a tiny point. Also, Sharp weapons have a nasty habit of stickeing in the zombie...
area of the edge of the blade is smaller for a sharp knife. so for the same force the pressure under the blade will be greater and smaller force required to give the same pressure.
It is more dangerous like you could injure yourself
A sharp knife has a thinner blade that exerts more concentrated cutting force, making it easier to slice through vegetables without applying excessive pressure. A blunt knife, on the other hand, requires more force to cut, increasing the risk of slipping and causing accidents. Additionally, a sharp knife produces cleaner cuts, resulting in less damage to the cell walls of the vegetables and a reduced loss of nutrients and juices.
You are crushing the onion not slicing it releasing more of the oils.
A sharp axe has a thinner edge that can easily penetrate and split the wood fibers, requiring less force to chop. On the other hand, a blunt axe has a thicker edge that crushes and pushes the wood fibers aside rather than cutting them cleanly, making it more difficult to chop through wood.
"The sharp knife goes where you send it, the dull knife goes where it wants" is a reminder to keep your edges sharp. The dull blade is deflected by a hard material.
A sharp nail has a smaller surface area, allowing it to penetrate the wood more easily. The smaller cross-section reduces the amount of wood fibers that need to be displaced, making it easier to drive the nail in.
If the stick is just sitting there, it doesn't exert any force at all. If you're swinging the stick, the shape of the stick won't matter much; the force will be determined by the speed and mass of the stick. If you are poking with the stick, then the FORCE will be the same whether it is blunt or pointed - but a pointed stick will concentrate the force into a smaller AREA, so the force per area will be a lot higher with a sharp stick than with a blunt one.
Because it's simpler and more efficient that using the blunt or sharp objects that people have been using for thousands of years.