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

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10y ago

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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 greater than their average velocity.


What is the moon's velocity around Earth?

The moon's average velocity around Earth is about 2,288 miles per hour.


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.


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 schools 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.)


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

Yes, a body can have a nonzero average speed but zero average velocity if it moves around a closed path and returns to its starting point. For example, if a car travels around a circular track at a constant speed, its average speed will be nonzero (as distance is covered), but its average velocity over the entire trip will be zero as the displacement is zero.


What describes the average velocity of a unicycle going around semicircles?

The average velocity of a unicycle going around semicircles would be zero if it starts and ends at the same point, since the displacement is zero. If it starts and ends at different points, the average velocity would depend on the total distance traveled and the time taken to complete the semicircles.


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.)


If an athlete runs once around a track back to the starting line is her average velocity zero?

No, the average velocity is not zero. Average velocity is the total displacement divided by the total time taken. For one lap around the track, the athlete ends up back at the starting line, so the total displacement is not zero.


What is the average velocity of atoms in 1.00 mol of neon a monatomic gas at 288 K?

The average velocity of atoms in a monatomic gas can be calculated using the root-mean-square speed formula. For neon at 288 K, the average velocity would be around 494 m/s.


What depth should a velocity sensor be placed to estimate a stream's average velocity if it's 12.5 meters deep?

The velocity sensor should be placed at approximately 40-60% of the total water depth, so in this case, it should be placed at around 5-7.5 meters from the surface to estimate the stream's average velocity accurately. Placing it in this range helps account for variations in velocity across the vertical profile of the stream.


What is the division 1 softball overhand throw velocity average?

The average overhand throw velocity for Division 1 softball players is around 60-70 miles per hour. This velocity can vary depending on the position of the player and their level of experience and training.