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UNIT: |
Kinematics in 2 dim, circular motion
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PURPOSE: |
| 1. |
Illustrate various kinds of circular motion |
| 2. |
Consider instantaneous velocity and acceleration in each case. |
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EQUIPMENT: |
A ball with a long string attached
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SUGGESTIONS: |
Demonstrate circular motion
| 1. |
Whirling in horizontal (Note that the string itself cannot be horizontal!) |
| 2. |
Whirling in vertical (Note that the speed cannot be constant!) |
| 3. |
Pendulum motion |
| 4. |
Discuss whether the speed and the magnitude of acceleration change or remain constant in each case 1-3 |
| 5. |
Discuss the change in direction of velocity and acceleration in each case 1-3 |
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DISCUSSION: |
Requires a full discussion of circular motion, including
tangential and perpendicular (radial, centripetal) acceleration
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