when applying the principle of linear impulse and momentum , how do I know if the force should be considered impulsive or non-impulsive , how should I know if I should consider it in the equation , I already know that an impulsive force is a force that is applied for a very short time ,but in some problems forces such as the normal force were considered impulsive ,for example , there is one containing a crate where the only forces applied are the weight ,normal force ,and friction and still momentum was not conserved , for example , the princip. of impulse and momentum is m(v1) + ∑ ∫ (F)dt =m(v2)(adsbygoogle = window.adsbygoogle || []).push({});

when do I consider the integral to be 0 and momentum conserved

Thank You

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# Homework Help: Princip of linear impulse and momentum, Difference btw. impulsive/nonimpulsive forces

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