bicycle wheel, initially at rest, rolls without slipping down a $5\mathrm{.}0-$meter$-$long ramp inclined $20$ above

the horizontal. Approximate the bicycle wheel as a $900-$g hoop with a $48\mathrm{.}0$ centimeter diameter. How

long does it take the wheel to roll down the ramp?

$($A$)1\mathrm{.}0$ s

$($B$)1\mathrm{.}4$ s

$($C$)2\mathrm{.}0$ s

$($D$)2\mathrm{.}4$ s

$($E$)2\mathrm{.}9$