Calculate the value of the angular acceleration of the motor using the given data: J= 50 kg-m^2, load torque = 40 N-m, motor torque = 10 N-m.(a) -.7 rad/s^2(b) -.6 rad/s^2(c) -.3 rad/s^2(d) -.4 rad/s^2I have been asked this question during an internship interview.This intriguing question comes from Dynamics topic in chapter Dynamics of Electrical Drives 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= 50 kg-m^2, load torque = 40 N-m, motor torque = 10 N-m.(a) -.7 rad/s^2(b) -.6 rad/s^2(c) -.3 rad/s^2(d) -.4 rad/s^2I have been asked this question during an internship interview.This intriguing question comes from Dynamics topic in chapter Dynamics of Electrical Drives of Electric Drives
Answer» Correct OPTION is (b) -.6 rad/s^2 The best explanation: Using the dynamic EQUATION of MOTOR J(angular acceleration) = Motor torque – Load torque: 50(angular acceleration) = 10-40 = -30, angular acceleration=-.6 rad/s^2. The motor will decelerate and will fail to start.

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