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There is almost never an "IF". All non-zero vectors have a constant, specified direction. Only a zero-vector has a direction which is unspecified.
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What is null vector?
NULL VECTOR::::null vector is avector of zero magnitude and arbitrary direction the sum of a vector and its negative vector is a null vector...
What will happen if all components of a vector are reversed in direction?
Then the resultant vector is reversed.
What is vector multiplication?
Vector multiplication is one of several techniques for the multiplication of two vectors with themselves. A vector has a magnitude and direction.
If vector is a quantity that has both size and direction?
... then what is the question?
What type of measurement is 12 feet up?
A vector has magnitude and direction, so since it is up it is vector.
Is constant speed constant velocity?
No. Velocity includes a direction vector, which speed does not have.
How can a car accelerate if its speed is constant?
It can Accelerate by changing it direction as acceleration eing a vector is dependant on the direction so by changing its direction one can accelrate it keeping the speed constant.
Can a velocity of a body change its speed is constant?
No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.
Can speed of a body change if its velocity is constant?
No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.
Does constant speed depend on direction?
no,because speed is scalar which has magnitude only meanwhile velocity is vector which has magnitude and direction
Why the speed of an object is constant while the velocity is not?
This is not always the case. But if an object moves in a circle, at constant speed, its velocity will change. Velocity is a vector - consisting of the magnitude (the speed), and a direction. So by definition, if the direction changes, the velocity changes - you have a different vector.
Is the acceleration of a rocket a vector or scalar?
It is a vector. A scalar has only magnitude. A vector has magnitude and direction.Acceleration is a vector because it has magnitude and direction. That's why an object can be said to be accelerating if it has a circular rotation and a constant speed; even though it's speed isn't changing, it's direction constantly is. Displacement (s), velocity (v), and acceleration (a), are vectors because they have both magntude and direction.
What is nature of velocity in constant speed?
Velocity magnitude is unchanging at constant speed. The direction might change (velocity is a vector with both size (speed) and direction) if , for example, you are driving around a curve at a constant speed.
What is moving every point a constant distance in a specified direction or addition of a constant vector to every point?
the answer is translation, i had to know the answer to that question for a worksheet
Does velocity of an object remain constant in uniform circular motion?
Velocity is a vector with magnitude (speed) and direction. Since the linear velocity changes direction the speed is constant but the velocity is NOT constant.
Does a car moving around the block drives at constant velocity?
It could move with a constant speed and not at constant velocity. Because the direction is ever changing. Speed is a scalar but velocity is a vector quantity which has direction aspect too.
What is the condition in which a body moving with uniform speed has a variable velocity?
Speed is considered a scalar while velocity is refered to as a vector. A vector can be varied with respect to its direction. Therefore, constant speed while changing direction varies the velocity
