How much time for a pencil to drop

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i have a pencil standing upright. How do i calculate the time it will take pencil to fall flat on ground if given a slight push to off balance. This is not homework. just thinking about it.
 
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It's not that simple.
You could use Newton's idea to get a rough answer.
Things which have mass attract other things which have mass,
 
rootone said:
It's not that simple.
You could use Newton's idea to get a rough answer.
Things which have mass attract other things which have mass,
A pencil has a significant Moment of Inertia so it is more than a simple falling mass calculation.