HALF-SINE AND HAVERSINE IMPACT SHOCK PULSE
  
Peak Acceleration   m.s-2 OR   g.
(values must not exceed: 200,000 m.s-2 (or 20,000g) )
Pulse Duration     millisecs.
(values must not exceed 5000 milliseconds)
Coefficient of Restitution   
1 = elastic collision (perfect rebound)
0 = inelastic collision (no rebound)
For a free-fall half-sine or haversine drop test, the program computes:
  - initial impact velocity
  - velocity change during impact
  - free-fall drop height and
  - surface deformation (#)

(#) For zero rebound, surface deformation is computed.
     For full rebound, effective spring deflection is computed.
     For intermediate values a weighted average is taken.

Values are given to 2 decimal places for convenience only -
they do not signify accuracy of real world test values.

 For further information:   www.cpd-dynamics.co.uk
Initial velocity =  m.s-1
Velocity change =  m.s-1
Drop Height =  metres
Impact surface deformation =  mm