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Simple Harmonic Oscillation

Consider the ...

Question

Consider the situation shown in figure, find the tension in string AB consider pulley and string as frictionless and massless:

A

3 N

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B

2 N

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C

8 N

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D

Zero

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Solution

The correct option is D Zero
FBD of (iii)
$T_{1} = 0.3 g \to 1$
FBD of (ii)
From figure
$N = g f_{s} = μ N = 0.5 g T_{1} = T_{2} + 0.5 g 0.3 g = T_{2} + 0.5 g T_{2} = 0$
Tension cant be negative

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