Question: When a mass is rotating in a plane about a fixed point, its angular momentum is directed along : [2012] (a) a line perpendicular

When a mass is rotating in a plane about a fixed point,

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along : [2012] (a) a line perpendicular to the plane of rotation (b) the line making an angle of 45 to the plane of rotation (c) the radius (d) the tangent to the orbit

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