How much power is expended in accelerating a $2\mathrm{.}00-$kg grinding disk with a $0\mathrm{.}250-m$ diameter from rest to $1000rpm$ in $10\mathrm{.}0s?$

$33\mathrm{.}4W$

$6\mathrm{.}8W$

$8\mathrm{.}6$ W

$34\mathrm{.}3W$