Review Interactive Solution $4\mathrm{.}83$ before starting this problem.

The drawing shows Robin Hood $($mass $=76\mathrm{.}0$ kg$)$ about to escape from a dangerous situation. With one hand, he is gripping the rope that holds up a chandelier $($mass $=215$ kg$).$ When he cuts the rope where it is tied to the floor, the chandelier will fall, and he will be pulled up toward a balcony above. Ignore the friction between the rope and the beams over which it slides.

$($a$)$ Find the acceleration with which Robin is pulled upward.

m$/$s$2$

$($b$)$ Find the tension in the rope while Robin escapes.

N