blocks

weight $=W=8kb($all three$)$

pulleys

friationless

$q,$

Three blocks are positioned as shown, and are connected by two cords in the manner depicted. Given that the blocks start at rest, use the Principle of Impulse and Momentum to find:

$($a$)$ the time $t$ required for Block $C$ to achieve a velocity $V_C=$

$($b$)$ the tension $T_1$ in the cord joining A and $B2f\frac{t}{s}$darr

$($c$)$ the tension $T_2$ in the cord joining $B$ and $C$

You may assume that $T_1$ and $T_2$ are constant, and that the blocks actually do start to move $($and don't simply remain at rest in equilibrium$).$ Hint: apply PIM to $($A$+$B$)$ to get one egn; apply PIM to $($C$)($abue$)$ to get a second one. These two equs can be solved for $t$ and $T_2.$ Then apply IIM to $($A$)($alone$)$ to solve for $T_1.$