1. The problem statement, all variables and given/known data A bicycle with tires 70 cm in diameter is traveling along a road at 25 km/hr. What is the angular velocity in radians per second? (the answer given in the textbook is 19.8 radians per second) 2. Relevant equations A= 1/2r^2 ∅ l = (radius)(central angle) 3. The attempt at a solution Nvm I figured it out, You first convert 25 km/h into cm/sec 25,000,00/60/60 = 694.5 Then, we go 2pi * 35 which gives us 219.8 We then divide 694/219.8 Which gives us 3.16 We multiply 3.16 with 2pi And get 19.8 radians per second.