What is the difference between speed and velocity?
velocity has direction and magnitude, speed has only magnitude.
velocity is speed with direction
For example....
An airplane is flying East at 300 miles per hour
Its speed is 300 miles per hour
Its velocity is 300 miles per hour East
calculate the volume of a solid that has a length of 3.1 cm width of 1.9mcm and a height of 2.8 cm
Velocity is displacement divided by time, its a vector having both magnitude and direction
Speed is distance divided by time and
is scalar having a magnitude only.
ie. a man runs a race stopping at the finish line, hence 0 displacement and no velocity. He would have speed because he traveled a set distance divided by his time.
Tyler put a cube of blue closed cell foam in a syringe and clamped the the end closed, what happened to the particles outside of the cube?
Speed and velocity are both terms used to describe how fast an object is moving, but there is a fundamental difference between them. Speed is a scalar quantity, meaning it only has magnitude, while velocity is a vector quantity, meaning it has both magnitude and direction.
To understand the difference, let's dive into the concepts a bit further.
Speed is a straightforward measure of how quickly something is moving, irrespective of its direction. It is a scalar quantity because it only represents the magnitude of the motion. To find the speed of an object, you can use the formula:
Speed = Distance / Time
For example, if a car travels 100 kilometers in 2 hours, its speed would be 50 kilometers per hour.
On the other hand, velocity involves both the speed and direction of an object's motion. Since velocity is a vector quantity, it requires specific information about the object's displacement to be fully described. Displacement refers to the change in position from one point to another. Therefore, velocity takes into account the speed and the direction in which an object is moving.
To calculate velocity, you would need to know both the displacement and the time taken for the displacement:
Velocity = Displacement / Time
For example, if a car travels 100 kilometers north in 2 hours, its velocity would be 50 kilometers per hour north.
In essence, speed tells you how fast an object is going, while velocity tells you how fast it is going and in which direction. Remember that speed does not require a specific reference point or direction, whereas velocity does.
It's also important to note that when an object moves in a straight line with constant speed, the magnitude of its velocity and speed will be the same. However, if the object changes direction or its speed varies, the velocity and speed will be different.