A piece of steel of mass 0.8 kg hangs from a string over the ... ...

  A piece of steel of mass 0.8 kg hangs from a string over the edge of a table. The string passes over a pulley and is connected in such a way as to maintain a tension force of 6 N (see figure). Image The force due to gravity on the steel is given by Fgrav = mg, where g = 10 m/s2 is the acceleration due to gravity. We allow the piece of steel to fall from rest for 5 s. What is the final acceleration of the piece of steel?
(A) 2 m/s2
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 03. Laws of Motion