Section: Solid Mechanics | Marks: 1
A massless semicircular rod held fixed at end A is in the xy-plane, as shown in the figure. A force P along the negative z direction is acting at point B on the rod. The unit vectors along x, y and z directions are denoted respectively as i, j and k. Due to the applied force P, the cross-section of the rod at point D will be subjected to
- A. a twisting moment ππ αΊ1 ΰ΅cos πα»π’, a bending moment ππ sin π π£, and a shear force ΰ΅π π€
- B. a twisting moment ππ αΊ1 ΰ΅sin πα»π’, a bending moment ππ cos π π£, and a shear force π π€
- C. a twisting moment ππ αΊcos πΰ΅1α»π’, a bending moment ΰ΅ππ sin π π£, and a shear force ΰ΅π π€
- D. a twisting moment ππ sin ππ’, a bending moment ππ αΊ1 ΰ΅cosα»π π£, and a shear force π π€
Answer: A. a twisting moment ππ αΊ1 ΰ΅cos πα»π’, a bending moment ππ sin π π£, and a shear force ΰ΅π π€