time a typical such longitudinal acceleration firing force which is equal to the longitudinal acceleration times the mass of the round versus time plot may look as shown in fig3 from this plot the processor 208 may calculate information such as the peak acceleration impulsive force level and the acceleration firing force duration u03b4t can be measured the processor 208 can be dedicated for such calculations or used for controlling other functions of the munition the plot information can also be used to calculate the average acceleration firing force level and the total applied impulse the area under the force versus time curve of fig3 or the product of the average firing force times the time duration the amount of impulse that the round is subjected to in its longitudinal firing direction is thereby known in practice the processor may be used onboard the munitions or the generally present fuzing processor could be used to make the above time and voltage acceleration or firing force measurements and perform the indicated calculations and provide the safety and fuzing decision making capabilities that are indicated in the remainder of this disclosure however a round is subjected to such input impulses in its longitudinal direction during its firing as well as during accidental dropping the level of input impulse due to accidental dropping of the round is however orders of magnitude smaller than that of firing for example consider a situation in which a round is dropped on a very rigid concrete slab generating around 15 000 g of acceleration in the longitudinal direction here it is assumed that the round is dropped perfectly on its base resulting in the highest possible longitudinal impact acceleration assuming that the elastic deformation that occurs during.