Scalar Quantity has magnitude only (not direction) and can be
indicated by a point on a scale. Examples are temperature, mass, time and dollars.
Vector Quantities have magnitude and direction. Examples are wind velocity, distance between
to points on a map and forces.
Collinear : If several forces lie along the
same line-of –action, they are said to be collinear.
Coplanar When all forces acting on a body
are in the same plane, the forces are coplanar.
Type
of Vectors
Free Vector - is vector which may be freely
moved creating couples in space.
Sliding Vector - forces action on a rigid
body are represented by vectors which
may move or slid along their line of action.
Bound Vector or Fixed Vector - can not be moved without
modifying the conditions of the problem.
