A 4.2 m long plank with a weight of 90 N is placed on a dock with 1.0 m of its length extended over the water. The plank
Posted: Mon Jul 11, 2022 1:00 pm
A 4.2 m long plank with a weight of 90 N is placed on adock with 1.0 m of its length extended over the water. The plank isuniform in density. A boy weighing 150 N is standing on theplank and moving out slowly from the edge of the dock. Howfar from the edge of the dock can the boy move until the plank isjust on the verge of tipping?