Do you believe it's from NTSE#1
Classical Mechanics
Level
4
Three equal weights A,B.C of mass 2 kg each are connected through a pulley (frictionless and massless) as shown .The tension in the string connecting weights B and C in NEWTON is:
:
The answer is 13.33.
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1 solution
After drawing free body diagrams we get the equations as follows, T − 2 0 = 2 a 4 0 − T = 4 a ( C o n s i d e r i n g B a n d C a s a s y s t e m ) ⟹ W e g e t a = 2 0 / 6 m / s 2 N o w f o r B a n d C , ⟹ 2 0 − T = 2 a p u t t i n g a a s 2 0 / 6 w e g e t T a s 1 3 . 3 3 N