question_answer

A and B are two like parallel forces. A couple of moment H lies in the plane of A and B and is contained with them. The resultant of A and B after combining is displaced through a distance     AIEEE  Solved  Paper-2005

A) \[\frac{H}{A-B}\]             

B)        \[\frac{H}{2(A+B)}\]      

C)        \[\frac{H}{A+B}\]            

D)        \[\frac{2H}{A-B}\]

Correct Answer: C

Solution :

Let the resultant of A and B be displaced by. Then, change in net momentum of A and B = applied momentum \[\therefore \]