In a stable stack of identical boards at the edge of a table, the center of gravity of the top board
A) must lie above the table.
B) need not lie over anything.
C) must lie above the bottom board.
D) must lie above the next lower board.

Name: In a stable stack of identical boards at the edge of a table, the center of gravity of the top board A) must lie above the table. B) need not lie over anything. C) must lie above the bottom board. D) must lie above the next lower board.
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Question

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The Answer is D

In a Stable Stack of Identical Boards at the Edge