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Question Number 69746 by jagannath19 last updated on 27/Sep/19

Commented by jagannath19 last updated on 27/Sep/19

$a n s w e r w i t h e x p l a n a t i o n$
	Answered by mr W last updated on 27/Sep/19

	$b e f o r e c u t :$ $f o r c e i n s t r i n g b e t w e e n A a n d B i s$ $F_{1} = m g$ $f o r c e i n s p r i n g o v e r A i s$ $F_{2} = 2 m g$ $j u s t a f t e r t h e s t r i n g b e t w e e n A a n d B$ $i s c u t, o n l y F_{2} r e m a i n s, F_{1} = 0, w e h a v e$ $F_{2} - m g = {m a}_{A}$ $\Rightarrow a_{A} = \frac{2 m g - m g}{m} = g (u p w a r d s)$
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