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Question Number 39655 by rahul 19 last updated on 09/Jul/18

Commented by rahul 19 last updated on 09/Jul/18

$Given Mass of Block A = m .$ $Mass of Block B = 3 m .$ $Find the {acc}^{n} of blocks at the instant$ $when string between block A & ground$ $is cut ?$
	Answered by MrW3 last updated on 09/Jul/18

	$B e f o r e t h e c u t :$ $T_{1} = 3 m g$ $2 T_{1} = m g + T_{2}$ $\Rightarrow T_{2} = 5 m g$ $A f t e r t h e c u t :$ $T_{2} = 0$ $3 m g - T_{1} = 3 m g \times a_{B}$ $3 m g - 3 m g = 3 m g \times a_{B}$ $\Rightarrow a_{B} = 0$ $2 T_{1} - m g = {m a}_{A}$ $6 m g - m g = {m a}_{A}$ $\Rightarrow a_{A} = 5 g (↑)$
	Commented by rahul 19 last updated on 09/Jul/18
	Thank you sir !��
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