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0.7) Differentiate
"Velocity" ?
between the term "speed and
Answers
Answer:
Key Differences between Speed and Velocity
Speed is a scalar magnitude, while velocity is a vector magnitude.
Speed is the rate or rate at which an object covers a distance, while velocity is the change of position of an object, which is equivalent to a specification of its speed and direction of movement.
When it comes to speed, the object can change direction and yet its average speed will continue to count. On the other hand, if it is velocity, the object must follow a constant direction; if the direction changes, so does the velocity.
Example of speed : a car traveling at 50 km / h, went from 0 km / h to 30 km / h before reaching 50 km / h; even at some point could rise to 60. However, the average speed will be counted as the speed of the car (50 km / h).
Example of velocity : A car that goes in a straight line towards a particular direction is considered to have a speed. If the car goes north and has an average speed of 30 km / h, it will be said that its velocity is 30 km / h, to the north.
The classical formula for determining velocity is: \ mathbf {\ bar {v}} = \ frac {\ Delta \ mathbf {r}} {\ Delta t} where the V with the hairline above is the average velocity, Δ r is the displacement and Δt is the time.
The classic formula for calculating speed is V = d / t.