what is the difference between speed and velocity?

Question

and what 5 objects have the same speed but different velocity

Answer 1

speed is the distance covered in an amount of time, velocity is the force by which the item travelled

as for the second part, i dont know!!...i'll have a think and come back....

Answer 2

Velocity has a direction as well as a magnitude, whereas speed has only a magnitude (distance covered in unit time).
In mathematical terms, velocity is a vector, often indicated by using bold type or underlining it when giving it a symbol, and has components in each of the three space dimensions (Vx, Vy, Vz).( It's difficult to show bold type or underlining in this answer.)
In maths terms, if s is the speed and v the velocity, then
s = |v|
Five objects going in different directions may have the same speed, but different velocities.

Answer 3

The physics definition of speed is just distance covered per unit time. The physics definition of velocity, however, is a combination of speed AND DIRECTION. In other words, physics treats speed and velocity as two similar, but distinctly different, concepts. A wind speed, for example, can be given as 10 miles per hour. Its velocity, however, would have to specify that it is 10 miles per hour from the North.

Can't answer the other part at the moment, will need to think!

Answer 4

velocity is the displacement travelled by the object in a certain time
while the speed is the distance travelled in a certain time
so the velocity is the speed expressed in vectors(it shows the direction)
..............
5 airplanes can have the same speed,but will have different velocities(direction is different)

Answer 5

Speed is a scalar quantity; Velocity is a vector quantity. Put this simply - velocity has both magnitude (size) and direction; Speed has only magnitude.

As far as magnitude is concerned, both are the same; For example, if your speed is 30 km/h, your velocity may also be 30 km/h but its direction may be due North or 47.5 degrees measured anticlockwise on Cartesian plane.

hope this helps.

Answer 6

60 mph is speed. 60 mph north is velocity.

Velocity is made up of magnitude and direction (like 60 mph north). The magnitude of a velocity is in fact speed.

So your drive 60 mph...the speed. But in succession you turn north, north east, east, south east, and, finally, south. At 60 mph, these five directions make up five different velocities.

Or you might have five cars going 60 mph, but with each going one of those five directions. Again, this would be five different velocities but at the same speed.

It's important to know both magnitude and direction of how fast you're going. For example, if I say two cars are going 50 and 60 mph respectively, is that cause for concern? Nope.

But what if I say they are headed directly for each other at those speeds? Yep. And that's because we now know their respective directions, they are on a collision course. And thus by knowing their velocities relative to each other, we know there is a problem.

Answer 7

Velocity is speed with a specified directiion.

5 cars going 50kmh on mutually non-parallel roads

Answer 8

Speed is a scalar and Velocity is a vector.

Answer 9

speed is a scalar quantity with no direction. Average velocity is a vector quantity which is total displacement over time.

Answer 10

speed does not have a direction
velocity has direction thats why you can have a negative velocity, but not a negative speed.

Answer 11

speed is a scalar. velocity is a vector.
speed=distance/time

velocity=displacement difference/time