(adsbygoogle = window.adsbygoogle || []).push({}); help on homework please....force

hey, i dont know if what i did for this question is correct, because the equation i found in my textbook may not be the right one to use.

A 5.0g bullet leaves the muzzle of a rifle with a speed of 320m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the .82m-long barrel of the rifle?

i used the equation:

(m(v^2)) / 2d =F

(.005kg*(320m/s)^2 )/ (2*.82m) =F

F= 312.2N

Is this close to being correct?

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# Homework Help: Help on homework please force

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