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Question

Find the minimum value of 'm', for the sytem to be in equilibrium. Take g=10 m/s2.

A
10 kg
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B
15 kg
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C
20 kg
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D
25 kg
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Solution

The correct option is D 25 kg
From FBD of point,
T2sin45=100 N
T2cos45=T1
T1=100 N
From FBD of block (limiting case)
T1f=μmg=0.4mg
m25 kg

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