The motion of the arms of soldies taking part in march past

Options

A. circular
B. oscillatory
C. rotatory
D. non-periodic

Answer

**Step-by-Step Solution:**

1. **Understanding the Motion**: When soldiers march, their arms move in a specific pattern. As they march, their arms swing forward and backward in a rhythmic manner.

2. **Observing the Pattern**: Each time a soldier takes a step, their arm moves forward and then backward. This movement occurs repeatedly with each step they take.

3. **Identifying the Type of Motion**: The motion of the arms can be characterized by its repetitive nature. Since the arms return to their original position after moving forward, this indicates a specific type of motion.

4. **Defining Oscillatory Motion**: The repetitive motion of the arms swinging forward and backward at regular intervals is known as oscillatory motion. This type of motion is defined by the fact that it occurs in a fixed time interval and repeats itself.

5. **Conclusion**: Therefore, the motion of the arms of soldiers during a march past is classified as oscillatory motion.

**Final Answer**: The motion of the arms of soldiers taking part in a march past is oscillatory motion.

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