a) $10.8 \textrm{rad/s}^2$
b) $13.0 \textrm{m/s}^2$
c)$6.53 \times 10^2 \textrm{m/s}^2$
d)$ 4.77 \times 10^3 \textrm{N}$
e) $1.14^\circ \textrm{ from the radius}$