Question
a) Find the angular velocity of a wheel that rotates 6 times every 4 seconds.
b) What is the tangential velocity of the outside of the wheel if the radius is 15 cm?
b) What is the tangential velocity of the outside of the wheel if the radius is 15 cm?
Answers
Scott
a) 6 * 2 π / 4 = ? rad/s
b) ? rad/s * 15 cm/rad
b) ? rad/s * 15 cm/rad
Henry
a. Va = 6rev/4s * 6.28rad/rev = 9.42 rad/s.
b. Circumference = pi*2r = 3.14*0.30m = 0.942 meters.
V = 9.42rad/s. * 0.942m/6.28rad = m/s = Linear or Tangential velocity.
b. Circumference = pi*2r = 3.14*0.30m = 0.942 meters.
V = 9.42rad/s. * 0.942m/6.28rad = m/s = Linear or Tangential velocity.
Anonymous
calculate the average angular velocity of the spinning wheel that rotates 15 times in 8 mins