Physics-
General
Easy

Question

A small sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The force acting on the sphere are shown in figure. Which of the following statements is wrong?

  1. P equals W t a n theta    
  2. stack T with rightwards arrow on top plus stack P with rightwards arrow on top plus stack W with rightwards arrow on top equals 0    
  3. T to the power of 2 end exponent equals P to the power of 2 end exponent plus W to the power of 2 end exponent    
  4. T equals P plus W    

The correct answer is: T equals P plus W


    Here W equals T(c o s theta plus s i n theta)less than T
    so P plus Q equals T(c o s theta plus s i n theta)less than T
    Whereas [a], [b] and [c] are correct and [d] is wrong.

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