Calculate the value of angular acceleration of motor using the given data: J = 20 kg-m^2, load torque = 20 N-m, motor torque = 60 N-m.(a) 5 rad/s^2(b) 2 rad/s^2(c) 3 rad/s^2(d) 4 rad/s^2This question was addressed to me during a job interview.The above asked question is from Dynamics topic in portion Dynamics of Electrical Drives of Electric Drives

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

1.	Calculate the value of angular acceleration of motor using the given data: J = 20 kg-m^2, load torque = 20 N-m, motor torque = 60 N-m.(a) 5 rad/s^2(b) 2 rad/s^2(c) 3 rad/s^2(d) 4 rad/s^2This question was addressed to me during a job interview.The above asked question is from Dynamics topic in portion Dynamics of Electrical Drives of Electric Drives
Answer» The CORRECT choice is (b) 2 rad/s^2 The explanation: Using the dynamic equation of motor J(angular ACCELERATION) = Motor torque – Load torque: 20(angular acceleration) = 60-20=40, angular acceleration=2 rad/s^2.

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