$17.$ A wheel rotates with an initial angular velocity of $10$ rad$/$s$.$ Its angular velocity decreases

uniformly to zero during a $5\mathrm{.}0$ s interval.

Through how many revolutions does the wheel rotate during this $5\mathrm{.}0$ s interval?

a$)2\mathrm{.}0$

b$)4\mathrm{.}0$

$8\mathrm{.}0$

c$)$

d$)12$

e$)25$

$10$

$....$

$11\mathrm{.}2$