$3^($tJ$)$ degree polynomial with coefficients a $=1\mathrm{.}5$ b $=$ Si $25$; d $=1$ is used for iterative computation using Newton's method, where a$,$ b$,$ c and d are coefficients of c $=$ f$($s$)=$ a $*$ s $^3+$ b $*$ s $^2+$ cs $+$ d

Marks CO

$2$

$1$

$3$

$1$

$2$

$1$

$2$

$1$

$3$

$3$

$2$

$2$

$2$

$2$

$2$

$4$

$2$

$5$b

If the measured sensor S $=22$ the initial guess is $$2\mathrm{.}5,$ then how many iterations will be required before Newton Algorithm stops? What is the stimulus value at this point?