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Question: Determine the types of the motion. Example of motion – A plucked string of a sitar....

Determine the types of the motion. Example of motion – A plucked string of a sitar.

Explanation

Solution

We can determine the type of motion by studying the classification of motion and its types. Motion is change in the position of the object undergoing different displacement according to the types of the motion. There may be one or more motions associated with the single motion.

Complete answer:
Let us see the classification of the motion: on the basic of number of coordinates required to specify the object, motion of the object is classified as;
One dimensional motion: Only one coordinate is required to specify the position of the object. Ex: Motion of freely falling body
Two dimensional motion: Two coordinates are required to specify the position of the object. Ex: Motion of Billiard ball
Three dimensional motion: Three coordinates are required to specify the position of the object. Ex: Motion of butterfly in garden

Again, On the basic of path that the object can traversed, motion can be classified as:
(1) Linear/translational motion : Motion in a straight line
(2) Circular motion: motion in a circle
(3) Oscillatory/vibratory motion: motion about to and fro of the object
(4) Periodic motion: motion which repeats itself after definite time interval

Now, In the given example, the motion of the plucked string of a sitar is an oscillatory/vibratory motion. Because, It refers to the motion in which the object i.e. the string of the sitar moves to and fro or back and forth about an equilibrium or mean position. Also, This motion is a periodic motion in which the to and fro of the string of sitar repeats after definite time intervals.

Hence, the motion of the plucked string of Sitar is Oscillatory and periodic motion.

Note: We should know about all the types of motion and visualize the motion of the given object and choose accordingly. Periodic motion is a motion in which the object repeats its motion after a definite time interval and oscillatory motion is a motion in which an object oscillates about the mean position back and forth.