Question Number 68073 by necxxx last updated on 04/Sep/19
$$\:{A}\:{straight}\:{rod}\:{AB}\:{which}\:{is}\:\mathrm{60}{cm}\:{long},{is} \\ $$$${in}\:{equilibrum}\:{when}\:{horizontal}\:{and} \\ $$$${supported}\:{at}\:{a}\:{point}\:{C},\mathrm{10}{cm}\:{from}\:{A}, \\ $$$${with}\:{masses}\:\mathrm{6}{kg}\:{and}\:\mathrm{1}{kg}\:{attached}\:{to}\:{the} \\ $$$${rod}\:{at}\:{A}\:{and}\:{B}\:{respectively}.{It}\:{is}\:{also}\:{in} \\ $$$${equilibrum}\:{and}\:{horizontal}\:{when}\: \\ $$$${supported}\:{at}\:{another}\:{pivott}\:{at}\:{its}\:{mid}- \\ $$$${point},{with}\:{masses}\:{of}\:\mathrm{2}{kg}\:{and}\:\mathrm{5}{kg}\: \\ $$$${attatched}\:{at}\:{A}\:{and}\:{B}\:{respectively}.{Find} \\ $$$${the}\:{mass}\:{of}\:{the}\:{rod}\:{amd}\:{its}\:{C}.{G}\:{from} \\ $$$${point}\:{A}. \\ $$
Commented by necxxx last updated on 05/Sep/19
$${please}\:{help}\:{me}\:{out}. \\ $$