Question

A cyclist goes around a circular track once every 2 min. If the radius of the circular track is 105 m, then its speed will be :​

Answer 1

Answer:

5.5 m/s

Explanation:

We know that for a body moving in a circular path :

v=2πrt

Here,  speed, v = ? (To be calculated)

pi,π=227

Radius of circular track, r = 105 m

And, Time taken for 1 round, t = 2 minutes

=2×60 seconds

=120 s

Now, putting these values of π,r and t in the above formula, we get :

v=2×22×1057×120/7*120

=5.5m/s

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