# Need Help Solving Physics Word Problem

label Physics
account_circle Unassigned
schedule 1 Day
account_balance_wallet \$5

A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m.
If the book ends up at its initial position, what is the magnitude of its displacement?

Jun 7th, 2015

Thank you for the opportunity to help you with your question!

ZERO!!!...

To test your understanding of this distinction, consider the motion depicted in the diagram below. A physics teacher walks 4 meters East, 2 meters South, 4 meters West, and finally 2 meters North.

Even though the physics teacher has walked a total distance of 12 meters, her displacement is 0 meters. During the course of her motion, she has "covered 12 meters of ground" (distance = 12 m). Yet when she is finished walking, she is not "out of place" - i.e., there is no displacement for her motion (displacement = 0 m). Displacement, being a vector quantity, must give attention to direction. The 4 meters east cancels the 4 meters west; and the 2 meters southcancels the 2 meters north

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 7th, 2015

...
Jun 7th, 2015
...
Jun 7th, 2015
Nov 25th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle