Laws of MotionHard
Question
In the following arrangement the system is initially at rest. The 5 kg block is now released. Assuming the pulleys teh pulleys and string to massless and smooth, the acceleration of block is
Options
A.aA = 
B.aB = 0 m/s2
C.aC = 
m/s2
m/s2D.2aC = aA
Solution
5g - t = 5aA
2T - 8g = aC
aA =
; aC = 
ms-2and aA = 2aC
Here aB = 0 as T < 10 g
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