1. The 1.0-m-long nonuniform plank has weight 1000 N. It is supported by two rods, A and B, as shown above. The center of mass of the plank is 30 cm from the right edge. Each support bears half the weight of the plank. If support B is 10 cm from the right-hand edge, how far from the left-hand edge should support A be? The attached image is the picture for this problem that was given. 2. torque (clockwise)=torque (counterclockwise) torque=Fr 3. This is a multiple choice question and the choices are : 0 cm, 10 cm, 30 cm, 50 cm, and 70 cm. I have no idea how to do this problem so help would be appreciated.