Question

To sharpen the blade of the knife against a surface , which of the following objects mentioned below will be most suitable ? Why ? (Stone , glass, plastic block, wooden block)

Answer 1

(a) Stone will be more suitable because it will exert greater reaction and hence greater friction force which sharpen the blade of a knife easily by rubbing.

Answer 2

Answer:

stone will be the most suitable

Explanation:

As it is the hardest between the following

glass will break if we rub blade on it and plastic may break and if we rub it on a wooden block the wood will be only get cut but stone will not break if we rub a blade on it.

Thank you ☺