Two bodies $A(m_A=50(kg))$ and $B(m_B=35(kg))$

are connected by a flexible cable as shown. The

kinetic coefficient of friction between body A and

the inclined surface is ${}_k=0\mathrm{.}3,$ and the system is

released from rest. During the motion of the

bodies, determine:

a$.$ The acceleration of body $A.$

b$.$ The tension in the cable connecting the

bodies.

c$.$ The velocity of body B after $6$ seconds of

motion.