Question

the angular velocity of a wheel is 70rad/s.If radius of wheel is 0.5m, then linear velocity of of wheel is

Answer 1

1. Angular velocity ω = 70 rad /sec 
      Rotations per second = n = ω / 2π  = 35/π per sec
      linear velocity = distance covered in one rotation * n 
                             = 2 π 0.5 * 35 / π = 35 m/s