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Grade 12Mechanics

In the arrangement shown in the fig. the mass M is very heavy compared to m (i.e, M>>m).The tension in the string suspend from the cieling is:

a) 4mg

b) 2mg

c) zero

d) none of the above

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Profile image of neeraj pawar
16 Years agoGrade 12
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1 Answer

Profile image of anandpal shekhawat
16 Years ago

hi, 

as 

T=2Mmg/(m+M)  (T= tension in string joined to blocks)

& M>>m so T=2mg & T ' =2T =4mg (T ' =tension in string joined to cieling).

so (a) is correct.