Question

why do we need to place the edge of the nail towards the wall and hammer it insted flat end to insert it into the wall​

Answer 1

Answer:

if we saw the edge of a nail it is very sharp and inserts easily into the wall , when you try to insert the flat end of a nail to the wall, it's too difficult .

Explanation:

eat . study . sleep . repeat

Answer 2

Answer:

Since the edge of the nail is much thinner and sharper than the flat end of the nail, it can be hammered into the wall much easier than the flat end.