hai i had learned physics<little mechanics>

these motion equation’s
v = u + at

… + 2
my Question are to apply these physics as collision must there

  1. when i go 9.8m/(sec*sec) object goes rapidly from how i got this small as by what processor<->Nature speed(<-> relation b/w)

Q2. Not clear to me.

Q1. red book has reference.

just consult any open source physics engine. OpenDE or Bullet.