![navleen4owjrk1](/avatars/10101.jpg)
navleen4owjrk1
05.11.2020 •
Physics
A hungry rat is placed in a maze. It walks the following path to find a piece of cheese. 4.0m N, 7.5 m E, 6.8 m S, 3.7 m E, 3.6 m S, 5.3 m W, 3.7 m N, 5.6 m W, 4.4 m S, 4.9 m W. Calculate the distance the rat walked. Find the rat’s displacement and direction.
Solved
Show answers
More tips
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
Answers on questions: Physics
- P Physics How much work is done on an object by a force of 10.0 N pushing it 5.00 m?...
- P Physics A go cart engine applies a force of 888N and moves the cart forward 22m. How much work is done?...
- P Physics A crate is pulled with a force of 165 N at an angle 30° northwest. What is the resultant horizontal force on the crate? Help asap?...
- P Physics Which of the following classification groups contains organisms that have the most characteristics in common?...
- M Mathematics Sven is trying to find the maximum amount of time he can spend practicing the five scales of piano music he is supposed to be working on. He has 40 minutes to practice piano and would...
- E English You have discovered a meteorite that seems to be metallic. Its mass is 370 g, and you calculate the volume to be 50 cm3. Based on the three values provided, which metal would most...
- B Business Which of the following is part of the basis of a capitalist economic system?apetitionc.coordinationb.conflictd.exchange...
- M Mathematics John is filling a bathtub that is 18 in deep. He notices that it takes 2 minutes to fill the tub with three inches of water. He estimates it will take 10 more minutes for the water...
- M Mathematics Simplify the following 3³×6-³×2^5...
- M Mathematics Locate the fraction 2/3 on the number line...
Ответ:
Explanation:
We shall take the help of vector form of displacement . Taking east as i and north as j
4.0m N = 4 j
7.5 m E = 7.5 i
6.8 m S = - 6.8 j
3.7 m E, = 3.7 i
3.6 m S = - 3.6 j
5.3 m W = - 5.3 i
3.7 m N, = 3.7 j
5.6 m W = - 5.6 i
4.4 m S = - 4.4 j
4.9 m W = - 4.9 i
Total displacement = 4j +7.5 i -6.8j+3.7i-3.6j-5.3i+3.7j-5.6i-4.4j-4.9i
= -4.6 i -7.1 j
magnitude of displacement =![\sqrt{(4.6^2+7.1^2)}](/tpl/images/0869/7389/7b96d.png)
= 8.46 m
Direction
Tanθ = 7.1/ 4.6
θ = 57⁰ south of west .
distance walked = 4+7.5 +6.8+3.7+3.6+5.3+3.7+5.6+4.4+4.9
= 49.5 m
Ответ: