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Is anybody here good at physics?

To start off I need someone to explain Average speed and Velocity to me.
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Constant velocity, hoặc just a general definition of velocity? I can deal with average speed well enough, since that is specific. XD
blackpanther666 posted hơn một năm qua
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Damn I clicked thinking it would be a problem to solve hoặc something, but it is explaining terms instead :P For all the good I am in physics, and in English, I know all my physics in my native languge :/ Why not ask a teacher though, instead a bunch of people on the internet, who will explain it as much as any site dediacted to it would. What relly helps is direct contact with the one explaining :?
fake_alibi13 posted hơn một năm qua
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fake_alibi13 posted hơn một năm qua
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My teacher can't stay after school and i just needed to know how to answer a câu hỏi about comparing the two.
rosedawson1 posted hơn một năm qua
 rosedawson1 posted hơn một năm qua
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XxKeithHarkinxX said:

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posted hơn một năm qua 
blackpanther666 said:
Velocity is the general speed of an object in a được trao direction. Basically, that is the most general definition, so I'll go into thêm detail.
Velocity is different to speed and acceleration. Acceleration is the mechanism of a car gaining speed, while speed is the rate of change, in position, of the object itself. A vector is the direction that the object is heading in and deals with any changes to the object's direction.
Velocity deals with all of these, as it revolves around the object moving in a direction, as well as the được trao speed of đã đưa ý kiến object. For example, if a car is travelling at a speed of 100 km/hour, the car's speed has been specified... If a car is travelling at 80 km/hour, due north, then its velocity has also been specified.
I'll quickly touch on constant velocity. When an object reaches a certain speed, while being acted upon bởi the forces of gravity, that object cannot change its speed. This would be true if someone were to go skydiving, where forces of gravity are diễn xuất upon the skydiver's body and keeping them from slowing down, as they jump out of the plane at a certain speed and then keep gaining speed, as they are falling. This is what is known as constant velocity, as the skydiver is remaining at a constant velocity, from the initial speed and the forces of gravity, hoặc gravitational energy.
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posted hơn một năm qua 
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Oh and average speed. I forgot about that. The average speed is defined as the total distance traveled divided bởi the total time it took to travel this distance. Average speed is expressed in units of miles per hour.
blackpanther666 posted hơn một năm qua
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hoặc kilometers per hour. bạn can also cut it down, depending on how long the journey took, too. For instance, if the journey was short and took a short time, bạn cut it down to m/s, hoặc meters per second, which is another well-used formula in physics.
blackpanther666 posted hơn một năm qua
prophet69 said:
The relation between velocity and speed: Velocity is a vector which means that it must have a direction. Speed has only a magnitude. As an example:
An airplane has a speed of 450 miles per hour
An airplane has a velocity of 450 miles per giờ due North
The relationship between speed and velocity is that the magnitude of the velocity is equal to the speed.
The difference between velocity and speed: In physics, speed is defined as the rate of increase (or decrease) of distance travelled,with time. Linear velocity is the rate of increase (or decrease) of distance traversed bởi a body in a particular direction. Speed is defined with the omission of reference to direction. Thus, velocity is a vector quantity and speed is a scalar one.
Example to clarify the point: LETS TAKE A SIMPLE EXAMPLE.....
I.E
ASSUME I SLAPPED ON YOUR FACE. ...
SPEED :-------- Speed is a scalar quantity that refers to "how fast an object is moving."
VELOCITY :--- Velocity is a vector quantity that refers to "the rate at which an object changes its position."
----EXPLANATION---
How fast my hand is moving to slapped on your face, this is speed
When bạn get the slap and changes your face from right to left.. i.e the rate at which your face changes its position, this is Velocity
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posted hơn một năm qua 
polarwagon15 said:
yadda yadda speed is the measurement of the amount of time an object moves from point a to point b blah blah blah velocity is speed with direction yadda yadda
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posted hơn một năm qua 
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