Explain your answer 1)The abrasive wheel of a grinder will have lesser rotational inertia if most of its mass is a) located near the rim        c) uniformly distributed throughout the disk b) located near the axis of rotation     d) none of these   2) When there is no net external torque acting on the system, a) the angular momentum will depend on the time   b) the sum of internal torques will increase        c) the angular momentum is conserved  d) the sum of the internal torques will decrease

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A: Answer             c. 0.8 Nm