Question

A horse races once around a circular track in a time of 106 s, with a speed of 31 m/s. What is the radius of the track? A horse races once around a circular track in a time of 106 s, with a speed of 31 m/s. What is the radius of the track? @Physics

Answer 1

\[2\pi*r=31*106\]

r = 523 m

Answer 2

T = 106 s
T = 2 * pi / w
w = 2* pi / T = 2 * 3.14 / 106 = 0.05927 rad/s
and v = r * w ; r = v / w
r = 31/ 0.05927
r = 523 m