Problem: The turntable of a record player rotates at a rate of 50.7 rev/min and takes 92.7s to come to rest when switched off. Calculate the magnitude of its angular acceleration. Answer in units of rad/s^2. Solution: First I converted rev/min to rad/s. Which I got to be 5.309 rad/sec. Then I found the constant average decceleration which would be the decceleration because it is a constant decceleration. A(avg) = The Change in Velocity --------------------- The Change in Time My soultion, which is wrong, is -.0573. What am I doing wrong?