Big Sums Professional    Download   Formula   Screen shots   Tools of the program   Contact   Home Big Sums Professional has a multitude of functions. However, the main purpose of the program is to perform calculations for the Accident Investigator / Reconstructionist. Listed below are the titles of the equations if you think others should be here then send an to let us know.   Distance After accelerating for a time After skidding for a time Constant speed Overall stopping distance While accelerating to or from a speed While skidding to or from a speed Crush Delta - V Narrow Impacts Motorcycles Braking forces Diagonal split Front / rear split L or H split Acceleration Between two speeds in a time Between two speeds over a distance Coefficient of friction (skid test) Coefficient of friction (Drag test) Effective Coefficient (Part lock up) Effective Coefficient (Unbraked trailer) Searle's Acceleration To or from 0 over a distance in time Maths Qudratic equations* Triangulations* Areas of objects* Volume of objects* Time Constant speed To accelerate to/from 0 in a distance To gain or lose speed To skid to 0 over a distance Lane change maneuvre* Throw Launch of object (3 types) Time for an object to fall Pedestrian throw - Appel Pedestrian throw - Searle Pedestrian throw - Smith* Velocity Accelerating for a time Accelerating over a distance After skidding from a known velocity Before skidding, time and final velocity known Constant speed Critical curves - try this out online From skid marks From skid marks over 2 surfaces Maximum (safe) speed on a bend Momentum exchange (Angled) Momentum exchange (Linear) (Common v) Momentum exchange (Linear) (different v)* Skidding for a time Other Speedo error* * New to version 2 © Compass Computing 2002