Question

a nail is driven into a wooden board by using a hammer.the impact of the hammer on the head of the nail produces athrust of 25N. if the area of the head is 0.5mm and of the tip 0.1mm root. find the pressure on the head and the tip of the nail.

Answer 1

On the head the nail
Force=25 N
Area=0.5mm²
=0.5/100000
=0.000005m²
pressure =Force/ Area
=25/0.000005Pa
On the tip of the nail
Force=25N
Area=0.1mm²
=0.1/100000
=0.000001m²
Pressure= Force /Area
=25/0.000001Pa

Answer 2

Answer:

On the head the nail Force=25 N

Area=0.5mm²

=0.5/100000 =0.000005m²

pressure =Force Area

=25/0.000005 Pa

=0.5×10⁸ Pa

On the tip of the nail Force=25N

Area=0.1mm² =0.1/100000

=0.000001m²

Pressure= Force Area =25/0.000001 Pa

=2.5×10⁸ Pa