Abstract: In the crash test an object having a known mass is propelled along a propulsion path, continuously taking measurements of acceleration, velocity and force allowing a control system, in real time, to calculate the coefficients ai in the expression (a0+a1v+a2v2). The operator selects a velocity vc at which the object should be traveling when the object strikes the barrier. Using the selected velocity vc and values determined for a0, a1 and a2 an operator can determine a release velocity vr where the vehicle can be released from a release point and then coast and decelerating to the velocity vc when the vehicle hits the crash barrier.