Up by the shopkeeper? (Assume the balance has negligible mass). Do not enter units. [11.4 Submit Answer Incorrect. Tries 4/10 Previous Tries opkeeper. By what percentage is the A uniform plank of length 5.55m and mass 25.9kg rests horizontally across two horizontal bars of a scaffold. The bars are 4.00m apart, and 1.55m of the plank hangs over one side of the scaffold. How far can a painter of mass 67.4kg walk on the overhanging part of the plank before it tips? [0.384m Submit Answer Incorrect. Tries 1/10 Previous Tries A 18.3kg floodlight in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole, as shown in the figure below Acablo 29.9 with the beam helps to support the light