# how would the d-t graph be for an object moving in a circular motion ?

### Dear student,Suppose an athlete takes t seconds to go once around the circular path of radius r, then the velocity v is given by the relation

##### distance travelled = circumference of the circle

= 2p r

##### The following table gives the distance covered by a bus after every 15 minutes.

 Distance covered in Km Time in Minutes 0 5 15 20 25 30 35 0 15 30 45 60 75 90

the motion is non-uniform i.e., it covers unequal distances in equal intervals of time.

### Nature of S- t Graph for Non- Uniform Motion and Uses of Graphs

Let us now see the nature of S-t graph for non-uniform motion.

##### Nature of s-t Graph for Non-uniform Motion

Fig (a) represents the S-t graph when the speed of a moving object increases and Fig (b) represents the S-t graph when the speed of a moving object decreases.

From the nature of S-t graph we can conclude whether the object is moving with uniform speed or variable speed.

Team

Topperlearning.com

### Answered by  | 26th May, 2010, 12:25: PM

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