Problem P. 4055. (March 2008)
P. 4055. One end of a long, thin elastic sheet of negligible mass is attached to the rim of a horizontal table, and a 3-kg object is fixed to its other end. At the equilibrium position the end of the sheet descends by 6 cm below the horizontal. Then the object is raised by 4 cm above the horizontal.
How much work is done while the object is raised?
Deadline expired on April 11, 2008.
120 students sent a solution. 4 points: 79 students. 3 points: 1 student. 2 points: 7 students. 1 point: 13 students. 0 point: 18 students. Unfair, not evaluated: 2 solutions.