Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then
A and B are equal
A is greater than B
the angle between A and B is 0°
the angle between A and B is 90°
the angle between A and B is 180°
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To determine the relationship between the forces
and
given that their resultant is
in the direction of
, we need to consider the vector addition of the forces.
The resultant force
when two forces
and
act at a point is given by:
According to the problem, the resultant force is
in the direction of
. This implies that the forces are acting in opposite directions, and the magnitude of
is greater than
.
Therefore, the correct answer is:
E. the angle between A and B is 180°
This is because when two forces act in opposite directions, the angle between them is 180°, and the resultant force is the difference between their magnitudes in the direction of the larger force.
