A sphere of radius 25 cm and mass 1 kg is hung by
a string of negligible mass and length 40 cm, then
tension in the string is -
[AIIMS-2015]
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Answer:
Angle made with horizontal
=cos
−1
(
4
25
)=51.317
From force balance
vertical component of tension =mg
Tsinθ=mg
Tsin51.37=1(10)
T=
0.78114
10
=12.8N
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