is a vector quantity (has magnitude and direction)
net/ resultant force refers to the sum of all the forces acting on an object
The resultant force also shows the final effect
which all the forces have on the object.
Types of forces
The weight of the body is the force of gravity actin gon the body..
Calculated by W=mg (where W=weight,
m=mass, g=gravitational acceleration)
is not the same as mass
(which is a scalar quantity--has
is a force that opposes motion, in order to
stop the motion.
without friction, we wouldn't be able to stop moving!
two objects in contact with each other will exert a force on each other
without contact force, objects would sink into each other because
there is no force causing pushing the objects away from each other.
The force exerted by the objects are actually
electromagnetic forces of repulsion between atoms
in the surface of the objects, in the microscopic level.
Normal contact force is the contact force acting
perpendicular to the surfaces of objects.
When objects are on a slope, they will slide
downwards as the weight of the object acts
downwards, while the onctact force acts diagonally.
The force that is transmitted through a string, rope, cable or wire
when it is pulled tight by forces acting from opposite ends. The tension
force pulls equally on the objects on the opposite ends of the wire.