(Solved): (8\%) Problem 5: An ice skater is spinning at 6.6 rev/s and has a moment of inertir of 0.36kgm ...

(8\%) Problem 5: An ice skater is spinning at 6.6 rev/s and has a moment of inertir of $0.36\mathrm{kg}\cdot {\mathrm{m}}^2$ A 33\% Part (a) Calculare the angular momentum, in kalogram meters squared per second, of the ace akater spanang at 6.6 ret/s. A $33\%$ Part (b) He reduces his rate of rotation by extending his arms and increasing his moment of inertia Find the value of his moment of inertia (in kilogram meters squared) if his nate of rotation decreases to 0.75 irsis. A $33\%$ Pant (c) Suppose instead be keeps his arms in and allows friction of the ice to slow him to 2.73 reva, What is the magmitude of the averaye torque that was exerted, in $\mathrm{N},\mathrm{m}$, if this takes $16\mathrm{r}$ ?