Which of the following motions will cause flexible impulse in a cam mechanism?
A: Constant velocity motion
B: Constant acceleration motion
C: Harmonic motion
D: Cycloidal motion
A: Constant velocity motion
B: Constant acceleration motion
C: Harmonic motion
D: Cycloidal motion
举一反三
- Which of the following motions exhibit no impulse in a cam mechanism? A: Constant acceleration motion B: Harmonic motion C: Cycloidal motion D: 3-4-5 orders polynomial motion
- Which of the following is NOT an example of accelerated motion? A: Vertical component of projectile motion B: Circular motion at constant speed C: A swinging pendulum D: Earth’s motion about sun E: Horizontal component of projectile motion
- For a point on a spinning disc in uniform circular motion, which of the following is not constant? A: It's angular speed B: It's angular acceleration C: It's centripetal acceleration D: The magnitude of it's total acceleration E: None of the others
- 中国大学MOOC: A uniform circular motion on xoy plane can be treated as the superposition of a simple harmonic motion in x direction and another simple harmonic motion in y direction.
- The reason _______ nothing on earth is motionless is_______ the earth is in constant motion(运动).