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