Velocity or Vector
Yes
That's the object's 'speed'.
Acceleration is the rate of change of VELOCITY, not of SPEED. If the velocity changes, there is acceleration. It is enough for the direction to change.
It is the object's velocity.
The rate at which an object covers distance is called the object's "speed".If the direction of its motion is also stated, then you have the object's"velocity".
Yes
That's the object's 'speed'.
Acceleration is the rate of change of VELOCITY, not of SPEED. If the velocity changes, there is acceleration. It is enough for the direction to change.
Zero acceleration if it is traveling in a straight line. An object that is accelerating must either be changing its rate of speed or its direction.
It is the object's velocity.
The rate at which an object covers distance is called the object's "speed".If the direction of its motion is also stated, then you have the object's"velocity".
That is called the object's speed.
velocity
That rate of change, along with the direction in which it's changing, comprise the object's acceleration.
The rate at which the speed or direction of its motion is changing.
Its "velocity".
The rate at which the speed or direction of its motion is changing.