A $0\mathrm{.}70-kg$ disk with a rotational inertia given by $M\frac{R^2}{2}$ is free to rotate on a fixed horizontal axis suspended from the ceiling. A string is wrapped around the disk and a $2\mathrm{.}0-$ kg mass hangs from the free end. If the string does not slip as the mass falls and the cylinder rotates, the suspension holding the cylinder pulls up on the mass with a force of

$26$ N

$6\mathrm{.}9$ N

$29$ N

$9\mathrm{.}8$ N

$16$ N