Quote:
Originally posted by fotze@May 16 2005, 07:48 PM
5=(0)t+0.5at^2
t=2# solve for a
a= 2.5
there is not enough info if the acceleration is dependant on distance form the earth
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That can't be right, because you don't account for the distance travelled during the first second.
OK here you go:
a = (Vf - Vi)/t
Vi=0
Vf -- you know it moves 5m during the second second, so 5m/s is it's
average velocity during the second second, which means it's actual velocity is 5m/s
half way through the second second. Therefore:
a = (5m/s - 0)/1.5s
a = 5m/s/1.5s
a = 3.33m/s/s