In figure, both blocks are released from rest. The time to cross each other is

2

second

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3

second

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1

second

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4

second

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Solution

The correct option is C $1$ second
REF. Image.
acceleration $= a = \frac{4 g - 1 g}{4 + 1}$
$= 6 m / s^{2}$
Relations acceleration of
Block A w.r.t Bock B :-
$2 a = 12 m / s^{2}$
$S = u t + \frac{1}{2} a t^{2}$
$b = 0 + \frac{1}{2} \times 12 \times t^{2}$
$t = 1 s e c o n d$
Option (c)

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In figure, both blocks are released from rest. The time to cross each other is

The correct option is C 1 secondREF. Image.acceleration =a=4g−1g4+1=6m/s2Relations acceleration ofBlock A w.r.t Bock B :-2a=12m/s2S=ut+12at2b=0+12×12×t2t=1secondOption (c)

The correct option is C $1$ second
REF. Image.
acceleration $= a = \frac{4 g - 1 g}{4 + 1}$
$= 6 m / s^{2}$
Relations acceleration of
Block A w.r.t Bock B :-
$2 a = 12 m / s^{2}$
$S = u t + \frac{1}{2} a t^{2}$
$b = 0 + \frac{1}{2} \times 12 \times t^{2}$
$t = 1 s e c o n d$
Option (c)