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their average speed is greater than their average velocity.

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Evan Carter

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โˆ™ 2021-08-19 15:16:35
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โˆ™ 2009-10-20 16:28:49

Their average speed is greater than their average velocity

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Q: Jake and Brenda drove at a speed of 30 mph for 1 hour Then they turned around and drove 45 mph until they were back where they started What is true about their average speed and average velocity?
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Jake and Brenda drove at a speed of 30 mph for 1 hour. Then they turned around and drove 45 mph until they were back where they started. What is true about their average speed and average velocity?

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


Can the average velocity of a particle be zero but not its average speed?

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.


What is planetary velocity?

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.


When Mike ran ten laps around his school's 14 mile track in 15 minutes. what was his average velocity in miles per hour?

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


Mike ran ten laps around his school's 14 mile track in 15 minutes. What was his average velocity in miles per hour?

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


What is the name of the condition when the average velocity of atmospheric molecules around you is not zero?

Wind


What is the fastest speed anyone has traveld around the world?

Around about 7800m/s. Average orbital velocity.


Which describes average velocity of a uniclycle going around in circles?

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


Which describes the average velocity of a unicycle going around in circles?

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


Can a body have zero average velocity but a nonzero average speed give example?

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


What is the average velocity of a lacrosse ball?

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 average orbital velocity of the earth is about 66000 miles per hour?

Correct - about 67,000 mph around the Sun.


Julie ran eight laps around her schools quartermile track in 18 minutes Her average velocity was ms?

zero


What is the linear velocity of earth's orbit around the sun?

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.


Can the average velocity of a moving body be zero. state example?

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.


Is the velocity constant if a car is going around a curve?

NO,velocity changes.


What is the difference between orbital velocity and angular velocity?

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 :)


Who recorded Rockin around the Christmas Tree?

Brenda Lee.


Did Brenda Lee attend Sacred Heart School in downtown Atlanta around 1950?

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.


Mike ran ten laps around his schools 14 mile track in 15 minutes what was his averag velocity in miles per hour?

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


Why velocity of flow will decrease with increase in peripheral speed of francis turbine?

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


If the average velocity of an object is zero is the average speed zero?

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


The velocity required to keed a satellite in orbit around the Earth is called?

circular velocity


When you run around a track at 5 km h your velocity is constant?

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.


What was Brenda Lee doing around the Christmas Tree?

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'