Physics-
General
Easy

Question

Four concurrent coplanar forces in newton are acting at a point and keep it in equilibrium figure. Then values of F and theta are

  1. 1 N, 60degree    
  2. 2 N,blank 60 degree    
  3. square root of 2 N,90degree    
  4. 2 N, 90degree    

The correct answer is: 2 N, 90degree


    In equilibrium position along y-direction
    2 sin 60degree equals square root of 3 plus F cos invisible function application theta
    or 2 cross times fraction numerator square root of 3 over denominator 2 end fraction equals square root of 3 plus F cos invisible function application theta or F cos invisible function application theta equals 0
    As F not equal to 0
    therefore blank cos invisible function application theta equals 0 or theta equals 90 degree
    Along x-direction, F blank s i n 90 degree equals 1 plus 2 c o s 60 degree
    equals 1 plus 2 cross times fraction numerator 1 over denominator 2 end fraction
    F equals 2N

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