If you put a uniform block at the edge of a table, the centerof the block must be over the table for the block not to falloff.
Q1: If you stack two identical blocks at the table edge, thecenter of the top block must be over the bottom block, and thecenter of gravity of the two blocks together must be over thetable. In terms of the length of each block, what is the maximum overhang possible?
Q2: Repeat part (a) for three identical blocks.
Q3.: Repeat part (a) for four identical blocks.
Q4: Is it possible to make a stack of blocks such that theuppermost block is not directly over the table at all?
Q5: How many blocks would it take to do this? (Try this withyour friends using copies of this book.)