# Atpl system

Classified in Physics

Written at on English with a size of 1.35 KB.

Scalar: physical quantity that has magnitude but no direction

Vector: a physical quantity that has both magnitude and direction

**resultant**: a **vector** that represents sum of two or more vectors

Vectors are represented ; scalar do not

a resultant vector operation represents the sum of two or more vectors

vectors can be added graphically

Phythagorean theorem for rigth triangles

c2=a2+b2

(length of hyp)2=(length of one leg)2+(length of the other leg)2

definiton of tangent

find direction of the resultant

tan0=**opp** sobre adj

components of a vector: the projections of vector along the axes of a

coordinate system

definition of sin opp adj oppleg hyp

cos ajd opp ajd hyp