Physics

789

The magnitude of average velocity of an object equal to its average speed if that object is moving with CONSTANT velocity.

The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".

First, note that velocity is a vector quantity. This means it has a magnitude (the speed) as well as a direction. The magnitude of the velocity is the difference in position divided by difference in time. Hopefully, the direction should be evident from the graph.

The main difference between speed and velocity involves direction. Velocity involves an object moving in a particular direction.

Acceleration is the change in velocity of an object over time. Take note that velocity is a vector quantity which means that it has magnitude and direction...Thus...An object undergoes acceleration when:1. there is a change in the magnitude of the velocity (speed) of an object.2. there is a change in direction of an object.3. it changes both in direction and magnitude.

speed is how fast an object is moving, velocity is how fast an object is moving in a given direction.

Velocity is a vector quantity in which both magnitude and direction must be taken into consideration. For an object to have constant velocity, it is necessary that both the magnitude and the direction of the velocity must be constant. Even if either magnitude or direction is variable, velocity will not remain constant. On the other hand, speed remains constant if direction is changed and magnitude is kept constant, as speed is a scalar quantity.For an object to have constant velocity, it is necessary that the object move at a constant speed and not change course. That object must move in a straight line to have a constant velocity.

average velocity is the displacement over time while instantaneous velocity refers to the velocity of an object at one point or at as pecific point of time. *displacement is the difference between the initial position and the final position of an object. (distance 2 - distance 1)

That's the magnitude of its acceleration.

That's the magnitude of its acceleration.

magnitude of the object's acceleration

That's the magnitude of its acceleration.

Answer: No, the speed is constant, but the velocity changes, since the direction changes. Please be sure you understand the difference between "speed" and "velocity", as used in physics. Speed is scalar which has only magnitude but not direction Whereas velocity is having both. So is a vector quantitiy

Apparent magnitude . . .how bright an object looks in the sky.Absolute magnitude . . .how bright the object would look in the skyif it were 32.6 light years away from us.

Velocity is the rate of change of distance with time, acceleration is the rate of change of velocity with time.

The speed and direction of an object combine to give its velocity with the speed being equal to the magnitude of the velocity.

The difference between an object's speed and an object's velocity is that the object's speed is how fast it is going, and the object's velocity is how many units of speed the object has traveled.

If the velocity is zero, the object is not moving. So if it moves at all, it is changing direction.

The object is moving in a path that keeps curving. Since its speed (magnitude of velocity) is constant, its path would be circular.

If there is acceleration (uniform or otherwise, but non-zero acceleration), the velocity changes. Constant velocity means that the velocity does not change.

Uniform velocity basically means that the velocity is constant. It means that the velocity of a give object never changes. Variable velocity means that a given object is either accelerating or decelerating.

Yes. Velocity implies both a magnitude and a direction. An object going around in a circle moves at a constant speed, but the direction, and therefore the velocity, is changing.Yes. Velocity implies both a magnitude and a direction. An object going around in a circle moves at a constant speed, but the direction, and therefore the velocity, is changing.Yes. Velocity implies both a magnitude and a direction. An object going around in a circle moves at a constant speed, but the direction, and therefore the velocity, is changing.Yes. Velocity implies both a magnitude and a direction. An object going around in a circle moves at a constant speed, but the direction, and therefore the velocity, is changing.

the velocity of an object is the size of the speed/magnitude plus the direction it is going in

Velocity is a vector quantity. That means it has direction and magnitude. Speed is a scalar quantity, it only has magnitude. It is possible to have constant speed and constant velocity but it is also possible to have constant speed but changing velocity if the object is changing direction.

The difference between speed and velocity is, that speed is the rate of how much an object in motion can get to and how much distance it can cover. Velocity is the motion on how far an object will go and how far it will take to get there. Speed is the rate of the change of distance over time Speed equals distance over time. Velocity is the change of rate of displacement with time velocity equals rate over time. The more speed that a object time to reach a distance, the less time it will take, the less speed to reach a object then the more time it will take to get there. Displacement is measured in the shortest path so the Magnitude is always equal to or less than the distance. The average velocity averages the object speed as the object approaches zero. Velocity is the vector of a object and the speed is the rate of movement. Speed is referred to how fast a object can reach in a period of time while velocity is which the object will change in position, both speed and velocity are calculated in the same units. Speed and velocity are both measured in the same units(km/hr)kilometers per hour or (m/s)meters per second. Velocity is a vector and Speed has a Scalar which is magnitude, velocity can also be the speed and the direction of a object. -plz 2kil u

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