If the athlete takes 60 seconds to go once around the circular path of radius 70 m, the velocity is ________ m/s.

Concept:

Linear velocity in a circular motion:
\(v =\frac{2{\pi}r}{t}\)

v = velocity, r = the radius of the circular path, and t = the time taken to complete one revolution.

Calculation:
Given:

The radius of the circular path (r) = 70 m
Time is taken to go once around the circular path (t) = 60 seconds

Substituting these values into the formula, we get:
\(v =\frac{2\times{\pi}\times70}{60}\)
v= 7.33 m/s

Therefore, the velocity of the athlete is approximately 7.33 m/s.