Question

8. It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.
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Answer 1

Answer:

➤the reason behind this is a blunt scissors are not sharp enough to exert pressure on the cloth to cut

Answer 2

The area is larger of blunt blades to comparison to sharp edges blades.

We know,

Smaller area ⇒ more pressure.

So, due to large area, blunt blades have low pressure. 

Hence, it is difficult to cut the cloth using a scissor with blunt edges.