Question

2.Write the reason (a)Constructing a knife with sharp edge. (b) shape of ship and aeroplane are streamline.
​

Answer 1

Answer:

Expert Answer: A sharp knife cut objects better because due to its very thin edge, the force of our hand falls over a very small ...

Answer 2

Explanation:

a)

allows you to hone your knife skills, allowing for more precise and fine work. It is also HUGELY important in terms of safety (case in point: slicing though tomato skin with ease rather than having your knife push against the tension and jump onto your innocent thumb).

b) The aeroplanes and ships have streamlined shaped bodies to reduce drag. The streamlined shaped body experiences minimum resistance when travelling through water or air. It helps to reduce friction.