Texts: A machine part rotates at an angular speed of 0.051 rad/s; its speed is increased to 1.9 rad/s.
a) Find the angle through which the part rotates before reaching this final speed in radians.
b) If both the initial and final angular speeds are multiplied by a factor of 2, by a factor of 4, and by a factor of 16, respectively, does the angular displacement change? If so, by what factor is the angular displacement changed? Why?