Hide Image Transcript L-7. The crank Q.B, 1 ft 4 in. long, of a variable stroke mechanism, rotates clockwise at a speed of 80 rpm. A connecting rod 4 ft 1112 in. long connects Q,B with an oscillating crank Q C, 4 ft long. Point Q, is 4 ft 4 in. to the left and 3 ft 4 in. below point Qz. A 60° bell crank EQ.F, oscillating about point Q8, 10 in. to the left and 4 in. above point Q,, has equal arms QgE and 0.6 2 ft 8 in. long. Point E, which is to the right of link Q,C, is joined to QC by a link EK, 2 ft 4 in. long. Point K is 8 in. from C toward Q, Point G which is to the left of E, is connected by a link, GH, 4 ft long, to a crossbead 8 by pin H, which is also to the left of E and which is sliding along a horisontal line 8 in. below the horizontal center line through Q, (a) By the instantaneous tester method, determine the velocities of C, E, H, and the mid point of GH, when Q.B makes an angle of 30° with the horizontal. Hide Image Transcript L-7. The crank Q.B, 1 ft 4 in. long, of a variable stroke mechanism, rotates clockwise at a speed of 80 rpm. A connecting rod 4 ft 1112 in. long connects Q,B with an oscillating crank Q C, 4 ft long. Point Q, is 4 ft 4 in. to the left and 3 ft 4 in. below point Qz. A 60° bell crank EQ.F, oscillating about point Q8, 10 in. to the left and 4 in. above point Q,, has equal arms QgE and 0.6 2 ft 8 in. long. Point E, which is to the right of link Q,C, is joined to QC by a link EK, 2 ft 4 in. long. Point K is 8 in. from C toward Q, Point G which is to the left of E, is connected by a link, GH, 4 ft long, to a crossbead 8 by pin H, which is also to the left of E and which is sliding along a horisontal line 8 in. below the horizontal center line through Q, (a) By the instantaneous tester method, determine the velocities of C, E, H, and the mid point of GH, when Q.B makes an angle of 30° with the horizontal.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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L-7. The crank Q.B, 1 ft 4 in. long, of a variable stroke mechanism, rotates clockwise at a speed of 80 rpm. A connecting rod 4 ft 1112 in. long connects Q,B with an oscillating crank Q C, 4 ft long. Point Q, is 4 ft 4 in. to the left and 3 ft 4 in. below point Qz. A 60° bell crank EQ.F, oscillating about point Q8, 10 in. to the left and 4 in. above point Q,, has equal arms QgE and 0.6 2 ft 8 in. long. Point E, which is to the right of link Q,C, is joined to QC by a link EK, 2 ft 4 in. long. Point K is 8 in. from C toward Q, Point G which is to the left of E, is connected by a link, GH, 4 ft long, to a crossbead 8 by pin H, which is also to the left of E and which is sliding along a horisontal line 8 in. below the horizontal center line through Q, (a) By the instantaneous tester method, determine the velocities of C, E, H, and the mid point of GH, when Q.B makes an angle of 30° with the horizontal.

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