Consider a system of blocks 
and 
as shown in the figure. The blocks 
and 
have equal mass and are connected by a massless string through a massless pully. The coefficient of friction between block 
and 
or 
and 
is 0.5 . If block 
moves on the horizontal frictionless surface what should be its minimum acceleration such that blocks 
and 
remain stationary. 
acceleration due to gravity.)
Text Solution
Verified by ExpertsA
Block 
moves with acceleration 
such that block 
and 
remains stationary. Block 
is stationary only when, Tension force on block 
is equal to friction force on 
.
i.e., 
...(i) 
Block 
is stationary only when friction force on block 
is equal to the sum of tension force on block 
and applied force on block 
.
Thus, 
should be its minimum acceleration such that blocks 
and 
remains stationary.
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