What is the condition to be satisfied by a mathematical relation between time and displacement to describe a periodic motion ?

What is the condition to be satisfied by a mathematical relation betwe

1.	What is the condition to be satisfied by a mathematical relation between time and displacement to describe a periodic motion ?
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> : A perodic <a href="https://interviewquestions.tuteehub.com/tag/motion-1104108" style="font-weight:bold;" target="_blank" title="Click to know more about MOTION">MOTION</a> <a href="https://interviewquestions.tuteehub.com/tag/repeats-1185149" style="font-weight:bold;" target="_blank" title="Click to know more about REPEATS">REPEATS</a> after a definite <a href="https://interviewquestions.tuteehub.com/tag/time-19467" style="font-weight:bold;" target="_blank" title="Click to know more about TIME">TIME</a> <a href="https://interviewquestions.tuteehub.com/tag/interval-1049953" style="font-weight:bold;" target="_blank" title="Click to know more about INTERVAL">INTERVAL</a> T. So, `y(t) = y(t + T)=y(t+2T)` etc.</body></html>