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If we have a displacement s as
         s  =  u  t  + 1/2 a t²
   s = distance or displacement after  time t sec.
  u  = initial velocity    m/sec
   a = uniform acceleration  over time  t    of  m/sec/sec
  v = velocity of the particle at time t.

then  we have
   v =  u +  a  t

the graphs for a uniform    positive acceleration are  shown  along with the graphs for a uniform velocity.
   example acceleration  =  5 m/sec/sec            u = 10 m/sec

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