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