Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance a scalar quantity per time ratio. Speed is ignorant of direction. On the other hand, velocity is a vector quantity; it is a direction-aware quantity. The average velocity is the displacement a vector quantity per time ratio. The scalar total value magnitude of velocity is known as speed, a quantity which is measured in metres for every second m/s or m·s-1 in the SI metric system. For instance, 5 metres for each second is a scalar not a vector, whereas 5 metres for every second east is a vector. An example of a scalar quantity is temperature: the temperature at a given point is a double number. Velocity, on the other hand, is a vector quantity: velocity in three-dimensional space is specified by two values; in a Cartesian coordinate system the values are the components of speed. Sep 03, 2009 · Speed is Simply the magnitude of the velocity, and hence is just a number, so is a scalar. For example, if you were walking from the origin at 5mph down the negative x-axis, your speed would be 5mph, but your velocity would be -5mph, as you are walking in the negative direction. Oct 22, 2010 · Speed is a scalar quantity because it has magnitude but not direction, velocity is a vector quantity because it has magnitude and direction.

May 14, 2011 · velocity is a vector quantity because it`s formula is displacement by time and displacement has a particular direction. that`s why velocity is a vector quantity but speed is a scalar quantity. Sep 25, 2007 · Why is speed classified as a scalar quantity and velocity classified as a vector quantity? Answer Save. 8 Answers. Relevance. Dvandom. Lv 6. 1 decade ago. Best Answer. It's just the way we define it. Speed is the magnitude only, so it's a scalar. Velocity is defined as magnitude and direction, a vector. We needed different words for the two.

Why is speed classified as a scalar quantity and velocity classified as a vector quantity? Speed has no particular direction; velocity specifies direction. If a vector that is 1 cm long represents a velocity of 10 km/h, what velocity does a vector 2 cm long drawn to the same scale represent? Why is speed classified as a scalar quantity and velocity classified as a vector quantity ? Speed has no particular direction; velocity specifies direction If a vector thats is 1cm long represents a velocity of 10km/h, what veelocity does a vector 2cm long drawn to the same scale represent. All measurable quantities in Physics can fall into one of two broad categories - scalar quantities and vector quantities. A scalar quantity is a measurable quantity that is fully described by a magnitude or amount. On the other hand, a vector quantity is fully described by a magnitude and a direction.

Jan 25, 2010 · Speed is a scalar quantity because it has magnitude but not direction, velocity is a vector quantity because it has magnitude and direction. Related Questions Asked in Science. And that's why the speedometer of a car will not display the direction you are moving to, but it will only display your speed. Speed is a scalar quantity because it is gotten from two scalar quantities. Distance is a scalar quantity; time is also a scalar. But when you talk of velocity, it. Speed depends on distance and time, which are also both scalar quantities, therefore, speed is also a scalar quantity. For example, a long road trip covered a distance of 338 miles. You drove that.

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