Current Attempt in Progress

The angular position of a point on a rotating wheel is given by $=1\mathrm{.}56+3\mathrm{.}29t^2+3\mathrm{.}02t^3,$ where $$ is in radians and $t$ is in seconds. At $t=0,$ what are $($a$)$ the point's angular position and $($b$)$ its angular velocity? $($c$)$ What is its angular velocity at $t=6\mathrm{.}42s?($d$)$ Calculate its angular acceleration at $t=2\mathrm{.}89s.($e$)$ Is its angular acceleration constant?

$($a$)$ Number $$

$$ Units $$

$($b$)$ Number $$ Units $$

$($c$)$ Number $$ Jnits $$

$($d$)$ Number $$ its $$

$($e$)$ Number $$