complete the task. 15 Nm Direction of torque must be opposite 2. Sallly is installing bookshelves in her living room. The shelf boards that she has chosen have a mass of 6.7 kg each. She estimates that she will put no more than 115 kg of books on each shelf. The bookshelves are 2.5 m long. She plans to mount one end of the board to the wall with screws and hang the other end of the board from the ceiling with a chain. Assume she has a full load of 115 kg of books with the center of gravity of their mass at the center of the board. Sally is at the hardware store to get an anchor for the chain mount to the ceiling. She is looking at purchasing an anchor rated for 1450 N m. Is this sufficient