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Author: Tinku Tara

A-3-0-1-5-And-f-x-5x-2-7x-8-Find-f-A-please-help-

Question Number 5892 by sanusihammed last updated on 04/Jun/16 $${A}\:\:=\:\:\left[−\mathrm{3}\:\:\:\:\:\mathrm{0}\:\right] \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\left[\:\:\:\:\mathrm{1}\:\:\:\:\:\mathrm{5}\:\right] \\ $$$${And}\:{f}\left({x}\right)\:=\:\mathrm{5}{x}^{\mathrm{2}} \:−\:\mathrm{7}{x}\:+\:\mathrm{8} \\ $$$$ \\ $$$${Find}\:{f}\left({A}\right) \\ $$$$ \\ $$$${please}\:{help}. \\ $$…

Question-71421

Question Number 71421 by ajfour last updated on 15/Oct/19 Commented by ajfour last updated on 15/Oct/19 $${Find}\:{speed}\:{of}\:{sphere}\:{as}\:{it}\:{rolls} \\ $$$${down}\:{the}\:{wedge},\:{and}\:{is}\:{about}\:{to} \\ $$$${touch}\:{the}\:{ground}.\:{Also}\:{find}\:{the} \\ $$$${least}\:{coefficient}\:{of}\:{friction}, \\ $$$${so}\:{that}\:{sphere}\:{comes}\:{rolling}\:{all}…