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4. Dynamik

Was ist der Impuls? Der Impuls ist die multiplikative Verknüpfung der Masse m und der Geschwindigkeit v.
Wie lautet die Formel für den Impuls? p=mv
Was ist die Einheit des Impulses? Newtonsekunde Ns oder kgm/s
Wie wird die Kraft definiert? Als Änderung des Impulses je Zeiteinheit: F=dp/dt=(dm/dt)v+m(dv/dt)=ma
Was ist die Einheit der Kraft? 1 Newton die Kraft die einem Körper mit der Masse m die Beschleunigung 1m/s^2 gibt.
Wann kann dm/dt Null gesetzt werden? Bei nichtrelativistischen Vorgängen v<<c0 ist die Masse eine konstante Größe und damit dm/dt=0
Created by: bojan1987
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