Question

1.lynne jogs daily around a circular track with a diameter of 25 m for a total distance of 942 m in 5.0 min.

a.How many times did lynne jog around track?

b.what is lynne's average angular speed in radians/s?

Answer 1

$$N=\frac{942}{\pi (25)}=12\\ \omega=\frac{2\pi (12)}{5\cdot60}=0.25\frac{rad}{s}$$