The average angular velocity (rad/sec)?

Question

If a bicycle with 700mm diameter wheels is ridden 10km in 15 minutes, what is the average angular velocity (rad/sec) of the bike’s wheels during this trip?

Answer 1

it rides 10 000m per 15*60 sec every sycle is 2 pie radian

lengh of every rew is 2*pie *diameter
g.v=((15*60/10000)*(02*pie*0.7))/2pie=0.063 rad /sec

Answer 2

A diameter of seven hundred mm interprets to a edge of two.2 m. for this reason in a 10 km holiday, the wheel rotates 4545.5 cases masking 2*PI radians each and every time quarter-hour = 900 s w = perspective/time, the place w is the angular velocity w = 4545.5*2*PI/900 = 31.7 rad s-one million