A cyclist moves along a circular path of radius 70m. If he completes

a-cyclist-moves-along-a-circular-path-of-radius-70m-if-he-completes

A cyclist moves along a circular path of radius 70m. If he completes one round in 11s, calculate the total length of a path.

A. 40m

B. 440m

C. 0m

D. 11m

I have been asked this question by my school teacher while I was bunking the class.

Question is taken from Motion in a Plane in portion Laws of Motion of Engineering Physics I

Correct answer is B. 440m

To explain: Radius of the circular path, r = 70m

Time takes to complete one round, t = 11s

Total length of the path, s = 2πr = 2×22/7×70 = 440m.