Abstract
AbstractSo far we have considered problems concerning the statics and dynamics of discrete (lumped) and continuous material systems when forces of action and reaction act upon these systems in a continuous fashion for the entire duration of a process. This chapter examines the case where changes in the system’s momentum that lead to a change in velocity are related to the action of a force or moment of force over a finite and often very short period of time. A phenomenon is called an impact if we observe a sudden (instantaneous) change in the velocity of a particle caused by the action of instantaneous forces. If two bodies collide and the time of the collision process is very short, then we observe a continuous change in the velocity of the body, and because the collision usually lasts for a very short time, it is associated with the generation of relatively large forces.KeywordsImpactImpulseKelvin’s theoremDirect blowOblique blowCentral blowCarnot’s theoremShock impulseSpinning impact
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