$5.$A $0\mathrm{.}650-$kg object is swung in a circular path and in a vertical plane on a $0\mathrm{.}500-$m$-$length string. If the angular speed at the bottom is $8\mathrm{.}00$ rad$/$s$,$ what is the tension in the string when the object is at the bottom of the circle?

$$

a$.$

$27\mathrm{.}2$ N

$$

b$.$

$20\mathrm{.}8$ N

$$

c$.$

$14\mathrm{.}4$ N

$$

d$.$

$6\mathrm{.}37$ N