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kza62
kza62 is offline
#3
Oct19-09, 06:38 PM
P: 14
ok, i think i figured it out but i'm not sure how let me try to break it down again
so if Fgravity is -9.8 then the Fnormal is 9.8?
so is Ffriction = u * Fnormal?
which is 1.176 is a?
and then i used
vf - vi / 2a
which gave me 140.689

did i get it or was this a lucky guess?