in a light string tied to the block.

$($a$)$ Find the torque as a function of time that the drive motor must provide while the block is sliding. Hint: The torque is given by $=2mrv.$

$tN*m$

$($b$)$ Find the value of this torque at $t=430s,$ just before the sliding block finishes its motion.

$N*m$

$($c$)$ Find the power which the drive motor must deliver as a function of time.

$t\frac{W}{s}$

$($d$)$ Find the value of the power when the sliding block is just reaching the end of the slot.

W

$($e$)$ Find the string tension as a function of time.

$t\frac{N}{s}$

$($f$)$ Find the work done by the drive motor during the $430s$ motion. Hint: The work is given by $w_{\text{m}\text{o}\text{t}\text{o}\text{r}}=m{v}^2{}^2{t}^2.$

$kJ$

$kJ$

$($h$)$ Find the total work on the system consisting of the disk and the sliding block.