Question

1) The nail is pushed into a wooden plank from its pointed
end.​

Answer 1

Answer:

so the force of getting in the wooden plank get less because of pointed end of nail. wood is no so hard not so soft so the easily get in a wooden plank with its pointed end

Answer 2

Answer:

The nail is pushed into a wooden plank from its pointed end because the pointed end increases the pressure on the wooden plank and less force is required to insert the nail into the wooden plank.

Pressure = Force/Area

So, as force area increases pressure decreases.

Pointed end decreases the area and increases the force.