In the system shown in the figure, the acceleration of 1kg mass is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: If a is downward acceleration of 4 kg block, the upward acceleration of 1 kg block must be 2a
Let T be tension in each part of string. The equation of motion on 4 kg block is
….. (i)
The equation of motion or 1 kg block is
…(ii)
Or 
….(iii)
Adding (i) and (iii) we get
or 
Acceleration of 1 kg block
upwards.
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