A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N?

• A

  0.25 $\mathrm{rad}/{\mathrm{s}}^2$

• B

  25 $\mathrm{rad}/{\mathrm{s}}^2$

• C

  5 $\mathrm{m}/{\mathrm{s}}^2$

• D

  25 $\mathrm{m}/{\mathrm{s}}^2$