Question

We can cut an apple easily with a sharp knife. Explain why

Answer 1

Answer:As we know that

Pressure = Force/Area

that means pressure is indirectly proportional to the area.

And if the area is decreased then the pressure will obviously increase.

So that we are can cut the apple easily with a sharp knife.

Explanation:

Answer 2

It is easy to cut an apple with a sharper knife as it has the least surface area.

Explanation:

• As we are aware of the basic formula,

$Pressure = \frac{Force}{Area}$

• This means that the pressure is directly proportional to the force applied and inversely proportional to the surface area of the object.
• If you take a spoon and try to cut the apple through its end, then it won't be able to cut properly.
• If you take a sharp knife and try to cut the apple, it would easily get cut like butter.
• The knife edge has less surface area in comparison with the spoon, so we need to apply less pressure on the apple to cut it.