• two rulers
• two quarters
• the edge of a table

1. Slide one quarter to the edge of the table.
2. Lay one ruler so it lines up diagonally to the table edge, one end hanging over, the other end touching the first quarter.
3. Put the second quarter on the end of the ruler hanging over the table.
4. Put your finger on the first ruler, pressing it onto the table, then use the other ruler to give it a good whack, hitting it near the end that hangs over. Watch those quarters go!

Which quarter hits the floor first?

the one that shoots out sideways
the one that just drops down
they land at the same time

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