TABLE P7-2 Data for Problems 7-5 to 7-6 and 7-58* Row Link 2 Link 3 Offset 02 002 a 14 4 1 45 10 b 2 6 -3 60 -12 5 3 8 2 -30 -15 -10 d 3.5 10 1 120 24 4 e 5 20 -5 225 -50 10 f 3 13 0 100 -45 50 7 25 10 330 100 18 9 *Drawings of these linkages are in the PDF Problem Workbook folder. 012 002 Link 3 Offset Link 2 Slider position d, d, B 04 = 90 X FIGURE P7-2 Configuration and terminology for Problems 7-5 to 7-6, 7-58, and 7-93 to 7-94 *17-7 The link lengths and the values of 02, 002, and y for some inverted fourbar crank-slider linkages are defined in Table P7-3. The general linkage configuration and terminology are shown in Figure P7-3. For the row(s) assigned, find accelerations of the pin joints A and the acceleration of slip at the sliding joint. Solve by the analytical vector loop method of Section 7.3 for the open configuration of the linkage. *17-8 Repeat Problem 7-7 for the crossed configuration of the linkage. *7-9 The link lengths, gear ratio (), phase angle (6), and the values of 02, 002, and 02 for some geared fivebar linkages are defined in Table P7-4. The general linkage configura- tion and terminology are shown in Figure P7-4. For the row(s) assigned, find 03 and 044 and the linear acceleration of point P. 17-10 An automobile driver took a curve too fast. The car spun out of control about its center of gravity (CG) and slid off the road in a northeasterly direction. The friction of the skidding tires provided a 0.25 g linear deceleration. The car rotated at 100 rpm. When the car hit the tree head-on at 30 mph, it took 0.1 sec to come to rest. *Answers in Appendix F. + These problems are suited a. What was the acceleration experienced by the child seated on the middle of the rear to solution using Mathcad, seat, 2 ft behind the car's CG, just prior to impact? Matlab, or TKSolver equa- b. What force did the 100-lb child exert on her seatbelt harness as a result of the tion solver programs.