Answer to Question #277460 in Physics for Lilkhid

Question #277460

A non-uniform zinc rod 60cm weighs 32N is balanced at the 45cm mark. A load of 2N is hung on the zinc rod at the 25cm mark. Where should a second knife-edge be placed to balance the rod horizontally

Expert's answer

"-(45 - 25)2 + (x - 45)R = 0\\\\-(20)2 + (x - 45)34 = 0\\\\x=46.2\\ cm"

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