The rotor of a gas turbine is rotating of 12 rad/s when the turbine is shut down. It is observed that 4 min is required for the rotor to coast to rest. Assuming uniformly accelerated motion, determine angular acceleration of the rotor before coming to rest.

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The rotor of a gas turbine is rotating of 12 rad/s when the turbine is shut down. It is observed that 4 min is required for the rotor to coast to rest. Assuming uniformly accelerated motion, determine angular acceleration of the rotor before coming to rest.

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