a$)$ Find the acceleration and $F_{T3}($the tension between the $3\mathrm{.}0kg$ mass and $4\mathrm{.}0kg$ mass$)$

assuming no friction.

b$)$ If the ${}_k=0\mathrm{.}10$ for all six objects find: the new acceleration, the tension $F_{T}5,$ and the

tension $F_{T2}.$

c$)$ If both the $1\mathrm{.}0kg$&$2\mathrm{.}0kg$ mass have $a{u}_k=0\mathrm{.}40$ and the others ${}_k=0\mathrm{.}10,$ what is the

new acceleration? $F_{T_2}?F_{T_3}?$