moment of force

Asked by vk1994 | 7th Sep, 2010, 07:53: PM

Expert Answer:

Since cross sectional area is directly propotional to the diameter squared, and stress is force per area,
the forces in two wires are related as,
FA = 4FS
Also the rod is rotational equilibrium, hence if the mass m has to be suspended at a distance x from steel wire,
FS x = FA ( 1.05 - x)   ... (1)
 x = 4( 1.05 - x)  
x = 0.84 m from steel wire.
regards,
Team,
TopperLearning.

Answered by  | 8th Sep, 2010, 11:36: PM

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