Toppling Dominoes
There are two straight lines of dominoes, each with the same number of dominoes equally spaced apart. Dominoes stand on their short sides in one line, and on their long sides in the other.
If both lines are pushed at the exact same time, which will topple first?
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The falling down of dominoes can be seen to be somewhat similar to a rod hinged at a point on the ground,purely rotating about the hinge Longer the length,greater the M.I,greater the VC(Velocity of center of mass) and thus lesser the time -taken Hence dominoes with shorter bases fall first