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Vehicle accident simulation study8/7/2023 ![]() ![]() The dissipation can be controlled and orderly as in the case of braking a car to a stop at an intersection, or it can be somewhat more violent as in the case of a collision with a concrete abutment. For instance, an automobile traveling at a particular velocity will possess a certain amount of kinetic energy which must be dissipated for the vehicle to come to a stop. However, this represents just the “tip of the iceberg” at the detailed level representative of actual engineering problems the full role played by mass properties is often revealed to be far more complicated than that indicated by such simple basic equations. Notable in the basic formulae of all three methods for the solution of problems in dynamics is the common parameter “m” (mass). Even at the most elementary level, as represented by the previous equations, the unifying role of mass properties is evident. Problems involving that most severe form of automotive longitudinal deceleration, crashing, are no exception. The method(s) used to investigate a particular dynamics problem depends upon the specific nature of the problem. Problems in dynamics may be solved by any one or more of three basic methods: force and acceleration (F=m a), work and kinetic energy (Fd=½ mV^2), impulse and momentum (〖Imp〗_(1→2)=mV_2-mV_1) these are just different ways of looking at a common underlying reality. ![]()
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