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A uniform sphere of weight w and radius 3m is being held by a string of lenght 2m attached to a frictionless wall.The tension in the string will be:

A uniform sphere of weight w and radius 3m is being held by a string of lenght 2m attached to a frictionless wall.The tension in the string will be:

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1 Answers

vikas askiitian expert
509 Points
13 years ago

let the angel made by string with verticle is @

normal reaction is perpendicular to wall and weight

tension is making angle of 90+@ with normal reaction and 180-@ with weight

now applying sune rule

   w/sin(90+@) = T/sin90 = N/sin(180-@)

  T=w/cos@..............1

now find cos@ in terms of L and R put put in eq 1

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