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El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
here you have variable force: F=kx ... it depends on position.
 one year ago

El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
dw:1350261159818:dw
 one year ago

El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
dw:1350261277772:dw
 one year ago

El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
dw:1350261506593:dw
 one year ago

El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
this is strange ... the bullet emerges with almost same veclocity http://www.wolframalpha.com/input/?i=sqrt%282%281%2F2*0.005*400^2++900*0.05^2%2F2+%29%2F0.005%29
 one year ago

El_Psy_Congroo!!Best ResponseYou've already chosen the best response.0
for this .. just remember PE of spring is \[ {1 \over 2}kx^2\]
 one year ago
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