# Chapter 6 - Force and Motion-II - Problems: 47a

10.3 seconds

#### Work Step by Step

The period is the time that it takes to complete a full revolution. If the radius of the circle is 10m, then we can find the circumference to be C = 2*pi*r = 20*pi meters. Since the man is traveling at 6.1m/s then he will travel the 20pi meters in 10.3 seconds.

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