While the swing bridge is closing with

a constant rotation of $0\mathrm{.}5ra\frac{d}{s},$ a man

runs along the roadway such that when

$d=30ft,$ he is running outward from

the center at $5f\frac{t}{s}$ with an acceleration

of $2f\frac{t}{s^2},$ both measured relative to the

roadway. Determine his $($absolute$,$

with respect to earth$)$ velocity and

acceleration at this instant.