Please remember to use the Homework Help Template when posting here in the schoolwork forums. Thank you.Balsam said:
berkeman said:Please remember to use the Homework Help Template when posting here in the schoolwork forums. Thank you.
Now, please show your detailed calculations so we can look for any errors.
Your work looks correct. Are you sure you copied the problem statement correctly? Are you sure they all were moving in the same direction (forward)? Are they all facing the same direction as they move?Balsam said:
Yes, I'm sure. All of the individual velocity values are given in the textbook, I copied them correctly.berkeman said:
Is there a figure that goes with the question? Can you upload a picture of the question?Balsam said:
Are these traveling for identical times OR for identical distances?Balsam said:
Try root mean square. Ans comes close.NascentOxygen said:
I figured it out-- you have to add all of their displacements to get the total displacement, then add all of their times to get the total time, and then divide those 2 numbers to get their average velocity.NascentOxygen said:
Does that get you to the book's answer?Balsam said:
Interesting...but on what basis could you justify RMS?256bits said:
Yeah, it does.NascentOxygen said:
Using your method I don't get the textbook's answer.Balsam said:
RMS doesn't give the book answer either I believe, but I was considering a velocity distribution ( 3 points ?? ).NascentOxygen said:
Average velocity is a measure of the overall rate at which an object or person moves over a certain period of time. It is calculated by dividing the total displacement by the total time taken.
Average velocity takes into account the direction of motion, while average speed only considers the magnitude of the motion. This means that average velocity is a vector quantity, while average speed is a scalar quantity.
The formula for average velocity is: average velocity = (final displacement - initial displacement) / total time taken. This can also be written as: average velocity = change in displacement / change in time.
Yes, average velocity can be negative. This occurs when an object or person moves in the opposite direction of the positive direction, or when the final displacement is less than the initial displacement.
Average velocity can be used to compare the overall rates of motion for three people on their individual trips. By calculating the average velocity for each person, we can determine who traveled at a faster or slower pace and by how much.