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If a person traveled by car from Lubbock to Midland to San Angelo and back to Lubbock what was the average velocity?
0 because the net displacement is 0
70 mph, because that is the legal speed limit
112.7 km/hr, the legal speed limit in km/hr
There is not enough information given

2007-01-09 05:55:33 · 6 answers · asked by star wars freak 2 in Science & Mathematics Physics

6 answers

0 is the answer

because for velocity we are concern with the displacement since the person returns back to starting point displacement = 0 so velocity = 0 :)
hope it helps :)

hehe

2007-01-09 06:01:24 · answer #1 · answered by lalala 1 · 0 0

There is not enough information given
Average velocity (speed) = distance x Time
You need the time spent driving and the distance travel total from the mileage indiactor.


If a person traveled by car from Lubbock to Midland to San Angelo and back to Lubbock what was the average velocity?
0 because the net displacement is 0
70 mph, because that is the legal speed limit
112.7 km/hr, the legal speed limit in km/hr

2007-01-09 06:00:24 · answer #2 · answered by god knows and sees else Yahoo 6 · 0 0

Velocity is a vector quantity and so it must have both speed and direction components.

To calculate the speed component you would take the distance between the starting and end point and divide by the time taken. The direction component would be given by the bearing from the start point to the end point.

Because the start and end points are the same, the average velocity will be 0.

Note that the average speed is not 0 because speed is not a vector quantity and direction is not aken into account. The average speed would be the total distance traveled divided by the time taken.

2007-01-09 06:14:15 · answer #3 · answered by Stewart H 4 · 0 0

There is not enough information given. You would need to know the time it took them to travel back and forth between those place to determine and average. Also it will not be either the 2 legal speed limit question (mph or kmh) because even though that is the legal limit you start of from a spped of 0 and that would effect your average

2007-01-09 06:01:22 · answer #4 · answered by tigger_32_kitty_27 2 · 0 0

This is speed not velocity. I remember my physics teacher talking about this. Velocity is in one direction.

2007-01-09 06:04:07 · answer #5 · answered by mr.answerman 6 · 0 0

it is not the 1st choice because velocity is a vector quantity ( has both direction and magnitude)

2007-01-09 06:00:34 · answer #6 · answered by talk2ajay 2 · 0 0

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