Question

A cyclist goes around a circular track once every 5 min. If the radius of the circular

track is 210m, then its speed will be _____________. [1]

(a) 4.4 m/s (b) 3.5 m/s (c) 5.5 m/s (d) 3 m/s.
pls ans this.... it's necessary... ​

Answer 1

Answer:

We know that for a body moving in a circular path : <br>

<br> Here,

speed,

= ? (To be calculated) <br>

pi,

<br> Radius of circular track,

= 105 m <br> And, Time taken for 1 round,

= 2 minutes <br>

seconds <br>

s <br> Now, putting these values of

and

in the above formula, we get : <br>

<br>

<br> Thus, the speed of cyclist on the circular track is 5.5 metres per second.