First of all, thank you so much for your help! I\'m stuck on part (c) of this pr

Question

First of all, thank you so much for your help! I'm stuck on part (c) of this problem:

c) When hanging from that point [(0,0)], what angle would the long side of the blade make with the vertical?

      - I have no idea how to figure this out. The book says that the answer is 54 degrees, if that is helpful! I also already found that the center of gravity is at (6,8.2). I'm assuming that when the blade is hanging, the center of gravity point will be at (0, -8.2)? That's as much as I can figure out though.

Explanation / Answer

The initial angle made by the line joiniing origin and centre of mass = arctan( 8.2/6) = 53.80 . therefore after the centre of mass re aligns to the final position , the line joiniing origin and centre of mass rotates by 90 + 53.8 deg, so does the long side . The initial angle of the long side with vertical = 90 , after it is , 90 + (90 + 53.8 ) = 53.8 deg in the third quadrant with the vertical .

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