Calculate the value of the angular acceleration of the motor using the given data: J = 81 kg-m^2, load torque = 74 N-m, motor torque = 89 N-m.(a) .195 rad/s^2(b) .182 rad/s^2(c) .183 rad/s^2(d) .185 rad/s^2I have been asked this question during a job interview.I want to ask this question from Modified Speed Torque Characteristics of DC Series Motors topic in chapter Characteristics of DC & AC Motors of Electric Drives

Calculate the value of the angular acceleration of the motor using the

1.	Calculate the value of the angular acceleration of the motor using the given data: J = 81 kg-m^2, load torque = 74 N-m, motor torque = 89 N-m.(a) .195 rad/s^2(b) .182 rad/s^2(c) .183 rad/s^2(d) .185 rad/s^2I have been asked this question during a job interview.I want to ask this question from Modified Speed Torque Characteristics of DC Series Motors topic in chapter Characteristics of DC & AC Motors of Electric Drives
Answer» Right choice is (d) .185 rad/s^2 To explain: USING the dynamic equation of motor J×(ANGULAR acceleration) = Motor torque – LOAD torque: 81×(angular acceleration) = 89-74=15, angular acceleration=.185 rad/s^2.

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