Name the force due to which every object fall on earth?
The force due to which every object falls on earth is called the force of Gravity.
Force of gravity is an attractive force.
What do you mean by pressure?
Pressure is the force acting on a unit area of a surface.
Mathematically, it is given by
=
Why is the edge of the nails made sharp?
Edge of nails is made sharp(less area) so that the object experiences more pressure. This makes easier for a person to penetrate the wood with the force of a hammer.
Why do camels have broad feet?
Camels have broad feet i.e., feet having a large are so that the pressure exerted on the sand is less due to their heavy weight.
We know that,
Pressure =
Therefore, camels do not dig deep in the sand dunes and can move freely.