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Old 05-16-2005, 09:48 PM   #3
AC
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Quote:
Originally posted by Mike F+May 16 2005, 08:22 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (Mike F @ May 16 2005, 08:22 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-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
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 [/b][/quote]
Yes! Thankyou!

This damn question has been bugging me all day.
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