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Question Number 23960 by ajfour last updated on 10/Nov/17

Commented by ajfour last updated on 10/Nov/17

$F i n d t h e N o r m a l r e a c t i o n f o r c e s$ $a t t h e f o o t o f t h e t h r e e l e g s$ $s u p p o r t i n g a u n i f o r m h o r i z o n t a l$ $t r i a n g u l a r t a b l e t o p o f m a s s m,$ $i n t e r m s o f t h e w e i g h t m g .$
Commented by mrW1 last updated on 10/Nov/17

$F_{A} = F_{B} = F_{C} = \frac{m g}{3}$
Commented by Physics lover last updated on 10/Nov/17

$s i r, i s n t t h a t t r u e o n l y f o r$ $a = b = c$
Commented by Physics lover last updated on 10/Nov/17

$? ? ?$
	Answered by ajfour last updated on 10/Nov/17

	$l e t A B b e x a x i s, t h e n t o r q u e$ $a b o u t A B i s$ $τ_{A B} = N_{C} y_{C} - m g (\frac{y_{C}}{3}) = 0$ $\Rightarrow N_{C} = \frac{m g}{3}; (a n d s i m i l a r l y$ $N_{B} = N_{A} = \frac{m g}{3}) .$
	Commented by mrW1 last updated on 10/Nov/17

	$A b s o l u t e l y r i g h t . {I t}^{'} s n o t d e p e n d e n t$ $f r o m t h e s h a p e o f t h e t r i a n g l e .$
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