This was the essential question on a homework assignment.
Speed tells how fast an object is moving but it does not tell the direction.
Velocity tells how fast an object is moving and it also tells the direction.
When velocity is positive, the object is moving up.
When velocity is negative, the object is moving down.
A vector is used to represent direction and magnitude of speed. Velocity is the speed of an object and a specification of its direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving. Therefore a vector can be used to represent a velocity. The term "resultant velocity" implies a change in velocity which can be determined using vector analysis.
v1 = initial velocity v2 = final velocity
Its speed, velocity, and acceleration are all zero.
An object travelling at a velocity close to the speed of light had a higher mass than when at rest.
Speed and Velocity are two words that mean the same. You may mean, "Can Velocity be 0 but acceleration not 0". Yes, this occurs when a moving object is changing direction (say from moving forwards to moving backwards) or is just about to move or, at that very instant has just come to a halt. In all these cases, speed /velocity is zero but the body is accelerating. Don't forget, the word acceleration is also used when an object is decelerating (slowing down).
You can sometime use integers but often speed or velocity can also be irrational.
A vector is used to represent direction and magnitude of speed. Velocity is the speed of an object and a specification of its direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving. Therefore a vector can be used to represent a velocity. The term "resultant velocity" implies a change in velocity which can be determined using vector analysis.
The difference between an object's speed and an object's velocity is that the object's speed is how fast it is going, and the object's velocity is how many units of speed the object has traveled.
the object's 'velocity'
the velocity of an object is its speed and direction
Velocity describes the speed and direction of an object.velocityvelocity
Velocity (speed).
is velocity
Velocity is the vector form of speed. It is the speed of an object in a specified direction.
The speed and direction of an object is its velocity.
Velocity can change even if speed is constant.
Velocity is the speed of an object.