"Most of the physical quantities in mechanics can be expressed mathematically by means of scalars and vectors. SCALAR: A quantity characterized by a positive or negative number is called a scalar. For example, mass, volume, and length are scalar quantities often used in statics... VECTOR: A vector is a quantity that has both a magnitude and a direction. In statics the vector quantities frequently encountered are position, force, and moment... A vector is representer graphically by an arrow which is used to define its magnitude, direction, and sense." p17

COPLANAR
FORCES OR LINES THAT ARE ORIENTED SO THAT THEY BOTH MAY LIE IN THE SAME SINGLE (IMAGINARY) PLANE (FLAT SURFACE OF INFINITE EXTENSION).

COPLANAR FORCES

FORCE
A PUSH OR A PULL

FORCE

RESOLUTION
THE SMALLEST INCREMENT IN DISTANCE OR SIZE THAT CAN BE IDENTIFIED OR CONTROLLED.

RESOLUTION OF A VECTOR

SCALAR
A NUMBER OR MEASUREMENT WITH ONLY A MAGNITUDE BUT NO DIRECTION

TRIGONOMETRY

TRIGONOMETRY

VECTOR