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How is speed and velocity different?
Velocity indicates direction in addition to speed.
Speed is a scalar and velocity is a vector. A scalar only has magnitude while a vector has magnitude and direction. : Example: If you are traveling north at 6…5 miles an hour your speed is 65 miles an hour, your velocity is 65 miles an hour north. It gets a little more complicated. Speed = distance (a scalar)/time Velocity = Displacement (vector)/time Example: If you run 5 miles in an hour left and then 5 miles in a hour right your speed is 10 miles/2 hours = 5 miles an hour. However, since you end up in the same exact location as where you started your displacement is zero making your velocity zero as well. Think of it this way; since velocity is a vector it requires a direction if i ended up exactly where I started I have no direction, thus velocity must be zero. One more example to clarify: If you ran 6 miles right and 4 miles left in 2 hours, your speed will be 5 miles an hour (10/2=5) your velocity would be 1 mile an hour to the right, since displacement is 2 miles to the right (6 to right - 4 to left = 2 to right) and the time is 2 hours displacement/time = velocity; 2 to the right/2 = 1 mile to the right per hour.
Velocity is a vector quantity, which means that a body's speed and direction are both required to define it. They are different because: Speed is the rate of change of di…stance with time but velocity is the rate of change of displacement with time.
Velocity has a direction component. Speed: 3 ft/s Velocity: 3 ft/s NNW Speed does not have the direction associated with it, like velocity does.
Speed is the distance travelled in a given period of time and is measured in metres per second or miles per hour (ie 'distance' per 'unit of time'). It is always a… positive number. Velocity, however,, is the sppeed of an object in a given direction. So that if you define ''forwards' as a positive velocity, then if the object travels 'backwards', that would be classed as a negative velocity. So, if a car travels forwards, say, at 30 mph, its speed will be 30mph and its velocity will also be 30mph. However, if the car returns at the same speed, its speed will still be 30mph but its velocity will be - 30mph (minus 30mph) as the car is travelling in the opposite direction. This may seem a pointless exercise, but in equations of motion that involve speed, velocity, accceleration, time and so on, the direction of travel is important and so the velocity is used rather than speed. The concept of velocity is used in space travel, satellite technology, calculating flight paths, calculating missile trajectories and so on and so direection of travel - and hence velocity - is of vital importance.
When a direction is specified, it is called velocity. When the direction is not specified, it is called a speed. (That's the difference between a vector and a scalar.)
Not really, they are basically the same
Velocity is speed and its direction. "30 miles per hour" is a speed. "30 miles per hour north" is a velocity". "30 miles per hour north" and "30 miles pe…r hour south" are identical speeds but different velocities.
velocity being a vector quantity has both direction and magnitude but speed being a scalar quantity has only magnitude.
speed is scalar while velocity is a vector. In other words, velocity is to do with direction also. Speed does not show direction.
Speed is a scalar quantity, and just has a magnitude (i.e. you may travel in any direction), while velocity is a vector, and requires a direction (e.g. the difference between …the speed 25km/h, and the velocity 25km/h North)
velocity is measured in relation to a certain spot on earth or a space, whether its moving or not. Speed is measured in relation to the earth.
Speed gives you information about how fast something is going (it is scalar), on the other hand velocity is a vector and gives you directional information also, for example if… you drive 50 kmph for a few hours from point A to a point B, and return to point A, your velocity is zero since the vector sums are zero
Velocity tells the speed and also the direction. "30 miles per hour north" and "30 miles per hour west" are the same speed but different velocities.
Speed is just a magnitude (25 m/s), which is known as a scalar value. Velocity, however, is a magnitude with a direction (25 m/s East), which is known as a vector value.
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