Q.
With reference to fig. showing a light inextensible showing passing over a fixed frictionless pulley, the tension T3 is
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a
24 .5 N
b
29.4 N
c
18.6 N
d
86.6 N
answer is A.
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Detailed Solution
We have the following equations :T1=T2 ...(1)T1â5g=5a ...(2)T3+4gâT2=4a ...(3)3gâT3=3a ...(4)Solving, we get T3=24â
5N
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