1.

The vector sum of two forces is perpendicular to their vector differences. In that case, the forces :

Answer»

are equal to each other in magnitude
are not equal to each other in magnitude
cannot be predicted
are perpendicular to each other

Solution :Let `vec(F_(1))` and `vec(F_(2))` br the TWO forces. Then
`vec(F_(s))=vec(F_(1)) + vec(F_(2))` and `vec(F_(d))=vec(F_(1))-vec(F_(2))`
Now `vec(F_(s))` is `bot`R to `vec(F_(d)):.vec(F_(s)).vec(F_(d))=0`
or `|vec(F_(1))|^(2)=|vec(F_(2))|^(2)` or `|vec(F_(1))|=|vec(F_(2))|`
The forces are equal in magnitude.


Discussion

No Comment Found

Related InterviewSolutions