Question

a particle is moving along a circular path of radius R with uniform speed of 1ms the time taken to complete 1 revolution is how many seconds?

Answer 1

time = dis÷speed
= 2πR

Answer 2

$speed = \frac{distance}{time} \\ time = \frac{distance}{speed} \\ time = \frac{2\pi \: r}{1 } \\ time = 2\pi \: r$
distance = one revolutions = circumference =2πR