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In order for two vectors to add up to zero:
-- their directions must be exactly opposite
-- their magnitudes must be exactly equal
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Can three vectors not in one plane give zero resultant?
No. For three vectors they must all lie in the same plane. Consider 2 vectors first. For them to resolve to zero, they must be in opposite direction and equal magnitude. So they will lie along the same line. For 3 vectors: take two of them. Any two vectors will lie in the same plane, and their resultant vector will also lie in that plane. Find the resultant of the first two vectors, and the third vector must be along the same line (equal magnitude, opposite direction), in order to result to zero. Since the third vector is along the same line as the resultant vector of the first two, then it must be in the same plane as the resultant of the first two. Therefore it lies in the same plane as the first two.
What is the term for vectors that lie in a straight line?
One-dimensional
What is collinear vector and examples?
vectors that have same direction and lie on same plane .example a person sitting in an aeroplane or helicopter, a person on a sale boat.
Where would a point lie if its ordinate is 0?
If the point's ordinate, or y-coordinate, is zero then it must lie on the x-axis somewhere.
If vector A is perpendicular to vector B and C then Vector A is parallel to?
Vector A is parallel to the cross product of vectors B and C, and it is parallel to the axis that neither B or C lie along if the two other axes are defined as the axes that B and C lie along.
Can three vectors not in one plane give zero resultant?
No. For three vectors they must all lie in the same plane. Consider 2 vectors first. For them to resolve to zero, they must be in opposite direction and equal magnitude. So they will lie along the same line. For 3 vectors: take two of them. Any two vectors will lie in the same plane, and their resultant vector will also lie in that plane. Find the resultant of the first two vectors, and the third vector must be along the same line (equal magnitude, opposite direction), in order to result to zero. Since the third vector is along the same line as the resultant vector of the first two, then it must be in the same plane as the resultant of the first two. Therefore it lies in the same plane as the first two.
Under what condition the sum of three vectors will be zero?
Three vectors sum to zero under the condition that they are coplanar (lie in a common plane) and form a triangle. If the vectors are not coplanar, they will not sum to zero. Another way of looking at it is that the sum is zero if any vector is exactly equal in magnitude and opposite in direction to the vector sum (so-called resultant) of the remaining two.
Cross product is not difine in two space why?
When performing the cross product of two vectors (vector A and vector B), one of the properites of the resultant vector C is that it is perpendicular to both vectors A & B. In two dimensional space, this is not possible, because the resultant vector will be perpendicular to the plane that A & B reside in. Using the (i,j,k) unit vector notation, you could add a 0*k to each vector when doing the cross product, and the resultant vector will have zeros for the i & jcomponents, and only have k components.Two vectors define a plane, and their cross product is always a vector along the normal to that plane, so the three vectors cannot lie in a 2D space which is a plane.
What is non-coplaner vectors?
They are a pair of vectors which are not parallel but whose lines of action cannot meet.
What is the term given to vectors that don't lie in a straight line but point in different directions?
Displacement Vectors
What is the term for vectors that lie in a straight line?
One-dimensional
What are coplaner vectors?
Coplaner means all points, lines, circles, vectors etc. lie in a single (usually theoretical) flat plane.
Which represents one dimensional motion?
Two vectors that lie along the same line-apex
What is the difference between coplanar vectors and collinear vectors?
The term collinear is used to describe vectors which are scalar multiples of one another (they are parallel; can have different magnitudes in the same or opposite direction). The term coplanar is used to describe vectors in at least 3-space. Coplanar vectors are three or more vectors that lie in the same plane (any 2-D flat surface).
Two vectors which do not lie along the same line represent what kind of motion?
Two-dimensional motion
What is the term for vectors that don't lie in a straight line but instead point in different directions?
Two-Dimensional
What is the term given to vectors that don't lie in a straight line but instead point different directions?
Two-dimensional
