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This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
1. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the tangential component of the acceleration of the mid-point of the bar after 5 seconds after the acceleration begins ? |
A. | 18287 m/s<sup>2</sup> |
B. | 18387 m/s<sup>2</sup> |
C. | 18487 m/s<sup>2</sup> |
D. | 18587 m/s<sup>2</sup> |
Answer» D. 18587 m/s<sup>2</sup> | |
2. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the normal component of the acceleration of the mid-point of the bar after 5 seconds after the acceleration begins ? |
A. | 2.7 m/s<sup>2</sup> |
B. | 3.7 m/s<sup>2</sup> |
C. | 4.7 m/s<sup>2</sup> |
D. | 5.7 m/s<sup>2</sup> |
Answer» D. 5.7 m/s<sup>2</sup> | |
3. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the linear velocity at the end of the interval ? |
A. | 235.5 m/s |
B. | 335.5 m/s |
C. | 435.5 m/s |
D. | 535.5 m/s |
Answer» B. 335.5 m/s | |