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ICSE Class 8 Physics Question 17 of 24

Force and Pressure — Question 19

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Question 19

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

Answer

A sharp knife has sharp edges that provides less surface area of contact as compared to a blunt knife which has more surface area of contact. So pressure applied by the force is more in sharp knife which makes it easier to cut than a blunt one.