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Solution 19.5a

From Mechanics

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Ian (Talk | contribs)
(New page: <math>\begin{align} & v=\int{adt} \\ & \\ & =\int{\left( -kt \right)dt} \\ & \\ & =-\frac{k{{t}^{2}}}{2}+c \\ & \\ & t=0,\ v=20\ \Rightarrow \ c=20 \\ & \\ & v=20-\frac{k{{t}^{...)
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Revision as of 15:37, 11 October 2010

v=adt=−ktdt=−2kt2+ct=0 v=20  c=20v=20−2kt2 Usingt=40 v=5gives5=20−5k402320k=15k=15320=364

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