2.2      LINEAR MOTION EQUATION

• SYMBOL

       - v = FINAL VELOCITY

       - u = INITIAL VELOCITY

       - a = ACCELERATION 

       - t  = TIME TAKEN

      -  d = DISPLACEMENT

• FORMULA 

     i ) v = u + at

     ii ) s = ut + 1/2 at^2

     iii) s = 1/2 ( u + v ) t

     iv) v^2 = u^2 = 2as

2.3    LINEAR MOTION GRAPH ( VELOCITY - TIME GRAPH )

EXAMPLE 

• GRAPH A

* When the line rises the object is speeding up ( contant acceleration )

• GRAPH B

* When the line horizontal , the object is constant velocity and acceleration is zero 

• GRAPH C

* When the line fall , the object is slow down ( constant deceleration )