Two blocks 
and 
, each of same mass, are attached by a thin inextensible string through an ideal pulley. Initially, block 
is held in position, as shown in the figure. Now, the block 
is released. Bolck 
will slide to right and hit the pulley in time 
. Block 
will swing and hit the surface in time 
. Assume the surface is frictionless.
Choose the correct option
and 
.
Text Solution
Verified by ExpertsB
At any instant, external force in horizontal direction is 
for 
and 
for 
and 
is
always greater then 
.
Acceleration for block 
Acceleration for block 
Here, 
and 
t A < t B
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