A potter’s wheel moves from rest to an angular speed of 0.20 rev/s in 31.6 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s2 ? Answer in units of rad/s 2

Answer 1

If the acceleration is constant, it must be the change in angular speed over the amount of time,

so it's .2/31.6 revolutions/s^2. now we just need to convert from revolutions to radians. Hint: how many radians is a full revolution of a circle?