REMARKS Because 27 rad = 1 rev, the angular displacement in part (b) corresponds to 2.23 rev. In general, dividing the number of radians by 6 gives a good approximation to the number of revolutions, because 2IT ~ 6. QUESTION If the angular acceleration were doubled for the same duration, by what factor would the angular displacement change? 4.46 X Examine the expression for the angular displacement as a function of the time and acceleration, for example 40 = wit + 1/2at. Determine by inspecting the expression how the angular displacement is changed by doubling the angular acceleration