Question

it is easy to cut the vegetables using sharp end of knife but difficult when we are using blunt end of knife ? Explain ​

Answer 1

Because force increases when surface area in contact decreases.

when knife is blunt the surface area of knife in contact is more than the surface area of a sharp knife.

Answer 2

Explanation:

Bcoz pressure is indirectly proportional to contact area so when contact area is decreasd pressure will be increased and vice versa.so sharp knife have sharp edge.