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Answered 2015-02-21 17:51:46

Their average speed is the harmonic mean of 30 and 45 while their average velocity is zero.

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Answered 2020-06-08 18:28:30

Their average speed is greater than their average velocity

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Yes, since velocity is speed and direction its average can be zero. For example say a plane flies from point A to point B at 300 mph and turns around to go from B to A at 300 mph; its average velocity is 0 since it is in the same spot as it started ( the velocity vectors cancel) but its average speed is 300 mph.


Orbital velocity is the average velocity (or speed) of a planet as it orbits around the sun. It is usually expressed as km/s or mph.


His velocity was zero - since he's back to where he started. (Try to substitute speed where appropriate.)


Around about 7800m/s. Average orbital velocity.


Every time the unicycle returns to its starting point, the average velocity equals zero. The total displacement divided by the time.


Every time the unicycle returns to its starting point, the average velocity equals zero. C. The total displacement divided by the time.


Yes, you can. Example: An object going around in a circle.


By velocity i assume you mean speed seeming as velocity includes direction; the speed of a lacrosse ball can be anywhere from 35mph to 112mph. In high school leagues the average ball speed on a shot should range around 85mph to 95mph. While in college leagues speeds should be around 100mph.



The Earth's velocity in its orbit around the Sun isn't constant; it speeds up near perihelion on January 4, and slows down to aphelion around July 4. But on average, it is about 66,000 miles per hour.


Orbital Velocity is calculated in m/s where as angular velocity is calculated in rad/s.. Answer is very clear.. angular velocity is calculated when body is rotating around a axis and a reference point is needed to calculate it.. where as orbital velocity is calculated when body is moving around a bado in circular path, nt around itself... e.g. Earth rotates around so it have angular velocity .. it also rotates around sun in orbit so it has Orbital velocity also :)


Yes, if, for example, a car races around a circuit, its total displacement is zero and so its velocity, at the end of every lap, is zero.


I attended Sacred Heart around that time. I remember a tiny girl with a big voice who was (I think) named Brenda Lee. I was just wondering if the Atlanta Brenda Lee that I knew is the same as the famous singer, Brenda Lee.


If the average velocity of an object is zero is the average speed zero? no Velocity is a vector. Drive 50 mph east for 2 hours and then turn around and drive 50 mph west for 2 hours. 50 mph east is + 50, and 50 mph west is -50. Average velocity = (+50 + - 50) ÷ 2 = 0 Speed is not a vector, it has no + or - sign. 50mph east is the same as 50 mph west. Average speed = 50 mph Displacement = distance from beginning point to final point Average velocity = displacement ÷ time = 0 miles ÷ 4 hr = 0mph Distance = length of path traveled ÷ time Average Speed = distance ÷ time = 200mi ÷ 4 hrs = 50mph


No. Your speed is constant but your velocity is not. Velocity is a vector and as you run around a track, the direction of your motion changes and so the velocity changes - not in magnitude but in direction.


Yes.Any acceleration is a change in velocity.So: What is velocity?Velocity is speed with directionJust speed would be: Sally runs 4km/hVelocity would be: Sally runs 4km/h north.The earth is moving at a fast speed around the sun. Because we are moving around the sun along a closed elliptical path we are always changing direction. (This is like running around an oval. As you run, you constantly change direction so that you can make it back to where you started from.)Because the earth is always changing direction its velocity is changing.Acceleration is a change in velocity so the earth is experiencing acceleration.


Brenda Lee sings a song called Rockin' Around the Christmas Tree. Therefore, she was "rockin'" around the Christmas tree, but not literally. It is a reference to the song. rockin' Rockin'


the peripheral velocity of the turbine is the around velocity. the increase in the velocity of the peripheral will decrease the velocity of the flow towards the turbine


It takes Venus 224.7 days to make one full orbit around the sun, and it has an average orbital velocity of 35.02 Km/s.


One example of Velocity is that if you are running in the same direction, your speed and velocity is the same. But if you are running AROUND the track, your speed is the same but your velocity is changing.




The velocity of an object at a particular instant or at a particular point of its path is called instantaneous velocity. In another word, the instantaneous velocity of an object is defined as the limiting value of the average velocity of the object in a small time interval around that instant , when the time interval approaches zero. v = dx/dt , where dx/dt is the differential coefficient of displacement "x" w.r.t. time "t"


Around the age of 13 or 14 that's when me and most of my friends started..



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