A block of granite weighing 200 pounds is lifted by a tongs as shown in the sketch below. The tongs consist of four bars, DG, EG, ACE, and BCD, all of which can be considered to be rigid. All of the joints can be considered to be frictionless pin joints. Determine the horizontal and vertical components of the forces applied to the block by the tong at A and B. Give your answers in both SI and US Customary Units G B L-13" d