Six vectors through have the magnitudes and directions indicated in the figure. Which of the following statements is true?
1.
2.
3.
4.
Three forces acting on a body are shown in the figure. To have the resultant force only along the y-direction, the magnitude of the minimum additional force needed is:
1.
2.
3.
4.
The vectors are such that: .
The angle between the two vectors is:
1. \(90^\circ\)
2. \(60^\circ\)
3. \(75^\circ\)
4. \(45^\circ\)
The vector sum of two forces is perpendicular to their vector difference. In this case, the two forces:
1. Are equal
2. Have the same magnitude
3. Are not equal in magnitude
4. Cannot be predicted
If then angle between A and B will be:
1.
2.
3.
4.