Question Number 144353 by ajfour last updated on 24/Jun/21
Commented by ajfour last updated on 24/Jun/21
$${The}\:{hollow}\:{cylinder}\:{and}\:{the} \\ $$$${plank}\:{are}\:{in}\:{equilibrium}, \\ $$$${string}\left({belt}\right)\:{length}\:{is}\:\mathrm{9}{r}. \\ $$$${If}\:{resulting}\:{tension}\:{in}\:{belt} \\ $$$${is}\:\lambda{mg},\:{find}\:\lambda. \\ $$
Answered by mr W last updated on 26/Jun/21