Question

Motion of the hands of the clock is repititive in nature and said to perform periodic motion but swinging of the arms while walking, which is also repititive in nature is non periodic. Why ❓​

Answer 1

Answer:Motion of the hands of the clock is repititive in nature and said to perform periodic motion but swinging of the arms while walking, which is also repititive in nature is non periodic

Explanation:

Answer 2

Before Answering to your Question, Have look what periodic motion actually is :

Periodic motion, in physics, is the motion which repeat

itself in equal intervals of time.

Coming back to question :

The hands of a clock is repetitive, this is because it follows the same path and repeat it's motion in a fixed interval of

time.

For e.x. In a fixed time span of 12 hours, the hour hand of the clock rotates 360° and again repeats the same for this fixed interval.

While,

The swinging of hand may appear to be repetitive but not necessarily be in fixed intervals of time. Somehow, it depends on how fast we actually move.

Since, the swinging motion of hands cannot be said to be repetitive perfectly in a fixed time, it cannot be said as in Periodic Motion.

Consider a pendulum, it also has a swinging motion, but is said to be in periodic motion. This is because it periodically repeats it's motion unlike our hands .

Hope this helps you :)