These problems require running of simulations (e.g., in Java Script) on your computer. The goal of these problems is the integration of physical concepts with computational tools. Please provide the answer to the questions and show work, e.g., by attaching screen shots and concise explanations, as needed. These problems are graded. 1. (3pt) Solve "Problem 4.3: Pull your little red wagon". https://www.compadre.org/Physlets/mechanics/prob4_3.cfm FIGURE 4-44 2. (4pt) Solve "Problem 4.5: A buoy is dropped into a lake". 4. (4 pt) An object hangs between two walls which are 1.8 m apart. If the rope sags 15 https:/www.compadre.org/Physlets/mechanics/prob4_5.cfm below horizontal and the object's mass is 1.5 kg, what is the tension in the rope? Be sure to draw a FBD of the shoe. Problems The following problems will be graded. For full credit, please show your work, including diagrams, algebraic equations, and enough written explanations that somebody who is not familiar with the problem could understand what you are doing. A final numerical answer is only one small part of a complete solution; an answer with no work shown will not be given any credit. 1. (5 pt) Giancoli Ch. 4 Problem 6 2. (6 pt) A set of eight boxes, 5.0 kg each, are stacked on top of a table, as shown in the figure below. (a) Draw a FBD of the top-most box and find the normal force exerted on it 5. (6 pt) One 3.2-kg paint bucket is hanging by a massless cord from another 3.2-kg paint by the box below. (b) Draw a FBD of the 2nd box from the top, including all three (!) bucket, also hanging by a mass-less cord, as shown in Fig. 4 49. (a) If the buckets are at forces acting on it. Find the normal force acting on this box by the box below it. (c) Do rest, what is the tension in each cord? (b) If the two buckets are pulled upward with an you see a pattern now? Draw a FBD of the lowest box, including all three forces acting acceleration of 1.25 m/s by the upper cord, calculate the tension in each cord. You need on it. What is the normal force that the table exerts on this box? to draw a FBD for each bucket. Table 3. (5 pt)(a) What is the acceleration of two falling sky divers (total mass = 132 kg including parachute) when the upward force of air resistance is equal to one-fourth of their weight? (b) If the upper person has a mass of 70 kg and the lower person 62 kg, what is the normal force exerted by each person on the other? See Fig. 4 44