Question

Q1) Complete the following sentences: 

a. It is easier to cut with a sharp knife than with a blunt one  because    

 . 


b. Porters place a round piece of cloth on their heads, when they have to carry heavy loads because  . 

Pleaee tell ​

Answer 1

Answer:

Dude here is your answer ready

Explanation:

The pressure exerted by the sharp knife edge is more than that exerted by the blunt one because the area on which force is exerted with a sharp knife is very small. Thus, it is easier to cut with the former than with the latter.

The round piece of cloth on their heads increases the area on which the force (weight of the load) will act. We know that, the pressure is inversely proportional to area. Therefore, increase in area reduces the pressure and this helps the porter to carry the heavy load easily.

Answer 2

Explanation:

As pressure is inversely proportional with which means if area is more the pressure decreases and vice-versa. So in a sharp knife area is less and the pressure is increased.

B) Same is applied as the A) part