Question

An athlete takes 't' second to complete one round of a circular track of radius 'r' .Write an expression for his velocity if he is in uniform circular motion ​

Answer 1

Answer:

Distance of one round of circular motion of 'r' radius

= circumference of circle

= 2πr unit

number of rounds = n (here 'n' means how much time he revolve around the circular ground)

total distance = n2πr

speed = distance/time

V = n2πr/t