Question

a physics book is moved once around the perimeter of a table of dimensions 1 m by 3m. if the book ends up at its intial position what is the magnitude of its displacement

Answer 1

First, welcome to OpenStudy!!

If any object ends up in the same place in which it started, it's displacement must be 0.

Remember that there's a big difference between displacement and distance. The book traveled through a distance equal to the perimeter of the table...but since it's back where it started, it's displacement was 0.

Answer 2

Thank you so much!

Answer 3

No problem :)

Answer 4

what would be the distance traveled?

Answer 5

What do you calculate the perimeter of the table to be? That's your answer :)

Answer 6

:) do you know how many questions i can ask?

Answer 7

As many as you like!

Answer 8

The distance you should get is 8m

Answer 9

oh my god! thanks! are you willing to help me with like 29 questions or less if i can get the hang of it?

Answer 10

If not me I'm sure someone will. Just post each one separately and give medals to those that help you :)

Answer 11

how do you give medals? this is my first time joining

Answer 12

Click the "Best Response" button...that's it

Answer 13

oh ok.. so are you a paid tutor? how does this work?

Answer 14

This site is completely free. 99% of the people here are no paid and just like helping others.

Answer 15

are *not* paid...typo

Answer 16

wow that is so nice! so i have more questions, is that alright?

Answer 17

Yes, just post them as new questions. One main question per thread

Answer 18

okay, what is bump?

Answer 19

I believe that bumps your question to the top...my screen doesn't show it but I don't ask questions...just try to help others

Answer 20

that is so nice :)

Answer 21

Helping folks keeps me from forgetting all this stuff...so I get something out of it too :)

Answer 22

if the average speed of an orbiting space shuttle is 19400 mi/h, find the time required for it to circle earth. consider the fact that the shuttle is orbiting about 204.6 mi above earths surface, and assume that earths radius is 3963 mi. answer in of h

Answer 23

Post it as a NEW question :) Look up to the left of your screen and paste that into the "Ask a question" box

Answer 24

More people will see it that way :)

Answer 25

okay thanks so much for your time shane

Answer 26

My pleasure

Answer 27

For this last question just think of circles.

1) Add the height above earth to the radius to get the total radius of the orbit
2) Calculate the perimeter of the orbit based on this new radius (Circumference = 2 pi R).
3) Divide the speed by the circumference to get the time it takes it takes to circle the earth once

Answer 28

thanks that helps a lot