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Speed is scalar quantity where as velocity is vector quantity. Unit is same as distance by time i.e. meter per second, kilometer per hour.
Hence, either speed or velocity does not exist without time.
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∙ 13y ago
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What is shared between speed and velocity?
Velocity is the speed and direction, whereas speed is how fast your going, So to answer your question speed is velocity just without direction.
Why is speed vital part of expressing velocity?
"Speed" is the name we give to the magnitude of velocity ... the 'size' of the velocity, without its direction.
Is speed a derived quantity?
Velocity is a derived quantity. Speed is velocity without direction. Velocity is derived from distance and time.
What is the nature of velocity time graph of a body moving with uniform retardation?
A body moving at a uniform speed may have a uniform velocity, or its velocity could be changing. How could that be? Let's look. The difference between speed and velocity is that velocity is speed.
How can velocity change without changing the speed?
Consider velocity as consisting of a speed, and a direction. If any of the two changes - that is, if either the speed or the direction changes - then the velocity changes.
What is shared between speed and velocity?
Velocity is the speed and direction, whereas speed is how fast your going, So to answer your question speed is velocity just without direction.
Why is speed vital part of expressing velocity?
"Speed" is the name we give to the magnitude of velocity ... the 'size' of the velocity, without its direction.
Is speed a derived quantity?
Velocity is a derived quantity. Speed is velocity without direction. Velocity is derived from distance and time.
What is the nature of velocity time graph of a body moving with uniform retardation?
A body moving at a uniform speed may have a uniform velocity, or its velocity could be changing. How could that be? Let's look. The difference between speed and velocity is that velocity is speed.
Can the velocity of a body be constant still varying its speed?
Yes. Velocity is rate (or speed) in a given direction. If you change your direction but not your rate (or speed) then you have changed your velocity without changing speed.
How can velocity change without changing the speed?
Consider velocity as consisting of a speed, and a direction. If any of the two changes - that is, if either the speed or the direction changes - then the velocity changes.
Why speed is scalar while velocity is vector?
Speed is scalar (that is, without direction) and velocity is a vector (speed plus direction) by definition in physics.
When do speed and velocity become equal?
speed and velocity becomes equal when a body is moving on a straight road without changing its direction.
Can a body have a constant velocity but varying speed?
No. If the speed varies, the body accelerates, and velocity cannot be constant.
What factors could affect the velocity of a moving object but not the speed?
None, velocity is the speed at which something moves, they are the same thing
Is true that absolute value of speed equals velocity?
No, you've got it backwards. The absolute value of velocity equals speed. Velocity is speed with a direction; speed is just a number, without regard to direction.
Can an object have a constant speed and a varying velocity?
Yes. Velocity is a quantity that has both magnitude and direction. Speed is the magnitude of velocity. If speed is constant but the direction is changing, then the velocity is changing. An example is a car turning a corner without slowing down.
