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Question-20876




Question Number 20876 by ajfour last updated on 05/Sep/17
Commented by ajfour last updated on 05/Sep/17
Rod AB is initially on a tabletop.  End a given only a little push to  start the fall of the rod as it turns  through end B where static friction  coefficient is high enough.  Find angle 𝛃 when end B  breaks  off the table corner.Also find  speed of end A then.
$${Rod}\:{AB}\:{is}\:{initially}\:{on}\:{a}\:{tabletop}. \\ $$$${End}\:{a}\:{given}\:{only}\:{a}\:{little}\:{push}\:{to} \\ $$$${start}\:{the}\:{fall}\:{of}\:{the}\:{rod}\:{as}\:{it}\:{turns} \\ $$$${through}\:{end}\:{B}\:{where}\:{static}\:{friction} \\ $$$${coefficient}\:{is}\:{high}\:{enough}. \\ $$$$\boldsymbol{{F}}{ind}\:{angle}\:\boldsymbol{\beta}\:{when}\:{end}\:{B}\:\:{breaks} \\ $$$${off}\:{the}\:{table}\:{corner}.{Also}\:{find} \\ $$$${speed}\:{of}\:{end}\:{A}\:{then}. \\ $$$$ \\ $$

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