The angular velocity and angular acceleration of the pivoted rod are given as `omega` and `alpha` respectively. Fid the `x` and `y` components of acceleration of `B`.

Explanation

`veva_(B)=veca_(BA)+veca_(A)=veca_(BA_(t)), + veca_(BA_(t)), veca_(A)`

where `a_(A)=0, a_(BA)=lalpha`
and `a_(BA)= lomega`
Then resolving the vectors in `x` and `y` directions we have
`a_(B_(x))=l alphacostheta-lomegasintheta`
and `a_(B_(y))=l alpha sin theta+lomega^(2)costheta`