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You express a vector along the X-axis as a negative vector when the arrow representing the vector would point toward negative x.

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Q: When should you express a vector along the x-axis as a negative vector?
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How a vector can be express in term of its rectangular component?

A vector can be represented in terms of its rectangular components for example : V= Ix + Jy + Kz I, J and K are the rectangular vector direction components and x, y and z are the scalar measures along the components.


Which are the three vectors that act along the mutually perpendicular direction?

cross product of tow vector result in a vector which is perpendicular the multiplying vector then these three vector are perpedicular


If one component of a vector A is zero along the direction of another vector B then in what direction the two vectors will be?

opposite direction.


What is total force in physics?

Total force (or net force) is the vector sum of the individual forces. Huh? OK, if all forces are along the x-axis, you add the positive forces and subtract the negative forces -- force is a vector, a quantity having a size and a direction.


Why two objects move in opposite direction one will have positive momentum and other negative momentum?

Quite simply, this means that momentum is a vector quantity; the direction is relevant. This is useful, for example, for calculations involving the conservation of momentum. Actually momentum is the product of velocity and mass, and velocity is also a vector quantity - thus, in this example, one object will have a positive velocity (more precisely: a positive component of the velocity along the x-axis, for example), the other, negative. Multiplying this velocity by the mass will also give a quantity which may be positive or negative (or rather, have positive or negative components).

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When should you express a vector along the x axis as a negative vector?

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Is a torque vector quantity?

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A vector a is along the positive z axis and it's vector product with another vector b is zero then vector b could be?

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Can a vector directed along x-axis have y-axis component?

At what angle should a vector be directed to so that its x component is equal to its y component


Is costheta is a vector?

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Which are the three vectors that act along the mutually perpendicular direction?

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