A toy rocket is shot vertically into the air from a launching pad

$6$

feet above the ground with an initial velocity of

$160$

feet per second. The height$$ h$,$ in$$ feet, of the rocket above the ground at t seconds after launch is given by the function

h left parenthesis t right parenthesis equals negative $16$ t squared plus $160$ t plus $6$h$($t$)=16$t$2+160$t$+6.$

How long will it take the rocket to reach its maximum$$ height? What is the maximum$$ height?