The pendulum oscillates about the $x-$axis according to $=0\mathrm{.}48sin11\mathrm{.}4t$ radians, where $t$ is the time in seconds. Simultaneously, the shaft $OA$ revolves about the vertical $z-$axis at the constant rate ${}_z=7\mathrm{.}6ra\frac{d}{sec}.$ Determine the velocity v and acceleration a of the center $B$ of the pendulum as well as its angular acceleration $$ for the instant when $t=0.$

Answers:

$v=i+$ i$.$

$$

$j+$ k$)$ in$./$sec

$a=1i+$ j$+$ i $$ k$)$ in$.\frac{?}{se{c}^2}=$ i$+$ i $$ j$+$ k$)ra\frac{d}{se{c}^2}$