Question

A sharp knife increases the area of contact and decreases the
pressure on the surface to be cut.

Answer 1

Answer:

The pressure is defined as the force per unit area. i.e P=F/A

So the pressure depends on the force F and area A of contact.

If force is constant, the pressure is only depends on the area.

A sharp knife edge has small area of contact and less area of contact will produce the more pressure.

Thus, the option B can be correct.

Answer 2

Answer:

what's the question

Explanation:

is it a give reason

But it's false