A rigid body is rotating counterclockwise about a fixed axis. Each of the following pairs of quantities represents an initial angular position and a final angular position of the rigid body. If the object starts from rest at the initial angular position, moves counterclockwise with constant angular acceleration, and arrives at the final angular position with the same angular speed in all three cases, for which choice is the angular acceleration the highest?
1.3 rad, 6 rad
2.-1 rad, 1 rad
3.1 rad, 5 rad
Question 2
A rigid body rotates counterclockwise about a fixed axis for exactly one second. Each of the following pairs of quantities represents an initial angular position and a final angular position of the rigid body. Which choice represents the lowest angular speed?
1.3 rad, 6 rad
2.-1 rad, 1 rad
3.1 rad, 5 rad
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