In physics, "speed" is how fast you go and "velocity" is how fast you go in a specific direction. On the road, it doesn't matter what direction you are going, only how fast. In common language outside of physics, we usually use "speed" and "velocity" to mean the same thing. But the word "speed" is shorter, so that is usually prefered for use on signs and in writting the laws about how fast you can drive. ************************** speed is really the same as velocity (u asked this at just the right time, i just studdied this in my science! lol). So why they chose to write on the speeding signs "speed" instead of "velocity", i have no idea....But if I think about it, the word "velocity" is more of a scientific name. "speed" is more simple, and to the point...everyone knows what were talking about! AND, if they DID us the word "velocity" over "speed", then you would probably be asking the same question, but reversed- "why are there velocity limits instead of speed limits?" so....do you get where im comming from? but, good question, anyway!!
Velocity would not be an accurate measurement unless the highway or street was completely straight because velocity also indicates direction.
1) Because more people understand the word "speed". Remember, highway signs have to be read and understood by people with a limited education, or whose first language is not English.
2) Because "speed" is a scalar quantity - it only has one component, how fast an object is moving. "velocity" is a vector quantity and measures speed and direction. Velocity-based signs would have to say something like "Velocity limit 50 MPH Going East"
becouse its depends on the speed of the car
its the same but they just have differnet signs .
is the same. but the signals use speed because its a more short word. :)
Because our cars have "speedometers".
This is true because it is understood that cars only travel in one direction in any given lane.
They can if the streets are owned by the home owners' association rather than by a municipality.
There are usually more tire blowouts on highways in April rather than December because the highways have more damage to them at this time of the year. There is more rain or water from melting snow that causes the damage.
When the direction of motion is relevant, you would use velocity rather than speed.
Homes in the Indus Valley Civilization were open to inner courtyards rather than the streets, along which ran the sewers.
The tangent at a point on the position-time graph represents the instantaneous velocity. 1. The tangent is the instantaneous slope. 2. Rather than "average" velocity, the slope gives you "instantaneous" velocity. The average of the instantaneous gives you average velocity.
Photon or rather light
There are several high-speed, controlled access, divided highways in the Greater Toronto Area: Highways 400, 401, 403, 404, 407 (toll), 410, 427, the Gardiner Expressway, the Allen Expressway, the Don Valley Parkway, and Canada's original one, the Queen Elizabeth Way (QEW), which was not named after our present Queen, but rather after her mother.
The terminal velocity of a falling object depends upon its aerodynamics (which is to say, its shape) rather than its size and mass.
This varies by lender. The withdrawal limits are not set by Mastercard, but rather the actual lender for the card. To find out your limit, contact your credit card issuer.
The garbage can as we know it today was not an invention, per se, but rather as evolution from simple containers used to hold garbage, rather than throw it into the streets.
Different native plants developed in different hemispheres