$1$ime left $0$:$25$:$20$

Block $A$ of mass $m_A=2kg$ on the tabletop is connected to block $B$ of mass $m_B=3kg$ by a massless rope over a pulley. The pulley has radius $R=0\mathrm{.}20$ m and a moment of inertia $\frac{?}{?}=5kg{m}^2.$ The rope does not slip over the pulley, and the pulley spins on a frictionless axle. The coefficient of kinetic friction between block A and the tabletop is ${}_k=0\mathrm{.}25.$ The system is released from rest, and block $B$ descends the distance of $h=0\mathrm{.}75m.$ Using energy method find the speed of block B when it descended $h=0\mathrm{.}75m.$

a$.,0\mathrm{.}40\frac{m}{s}$

b$.0\mathrm{.}93\frac{m}{s}$

c$.0\mathrm{.}53\frac{m}{s}$

d$.$ none of these

e$.0\mathrm{.}66\frac{m}{s}$

Clear my choice