At a time $t$ seconds after it is thrown up in the air, a tomato is at a height $($in meters$)$ of $f(t)=-4\mathrm{.}9t^{2}55t3m.$

A$.$ What is the average velocity of the tomato during the first $5$ seconds? $($Include units.$)$

B$.$ Find $($exactly$)$ the instantaneous velocity of the tomato at $t=5.($Include units.$)$

C$.$ What is the acceleration at $t=5?($Include units.$)$

D$.$ How high does the tomato go$?($Include units.$)$

E$.$ How long is the tomato in the air? $($Include units.$)$