Two boxes are held together by a strong wire and attached to the ceiling of an elevator by a second wire. The mass of the top box is 14.2 kg; the mass of the bottom box is 10.4 kg. The elevator is moving downward at a constant speed. (Assume the wire is relatively massless.) Draw force diagrams for each block using feeler-dealer labeling. What is the tension in each rope?

Answer rating: 100% (QA)

To draw force diagrams for each block using the feelerdealer labeling we need to consider the forces acting on each block For the top box mass 142 kg 1 The force of gravity acting downward weight Fgravity top mtopg 2 The tension force exerted by the wire holding it up Ttop For the bottom box mass 104 kg 1 The force of gravity acting downward weight Fgravity bottom mbottomg 2 The tension force exerted by the wire holding it up Tbottom Since the elevator is moving downward at a constant speed the net force on each box is zero Now lets calculate the tension in each rope 1 For the top box Ttop Fgravity top mtopg 142 textkg98 textms2 13916 textN 2 For the bottom box Tbottom Fgravity bottom mbottomg 104 textkg98 textms2 10192 textN Now lets draw the force ... View the full answer