nick34 nick34
  • 25-03-2015
  • Mathematics
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h=45t-4.9t^2 what's the max height?

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helen4 helen4
  • 25-03-2015
Differentiate to find time that gradient=0 45-9.8t=0 45=9.8t t =4.59 secs put this value into original equation to get 103.31
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