3. Odina walked down the hall at school from the cafeteria | StudySoup

Textbook Solutions for Physics: Principles & Problems

Chapter 2 Problem 13

Question

Odina walked down the hall at school from the cafeteria to the band room, a distance of 100.0 m. A class of physics students recorded and graphed her position every 2.0 s, noting that she moved 2.6 m every 2.0 s. When was Odina in the following positions?

a. 25.0 m from the cafeteria

b. 25.0 m from the band room

c. Create a graph showing Odina's motion.

Solution

Step 1 of 4

From the question it is clear that Odina walks equal distance i.e 2.6m at equal intervals of time i.e 2s, hence Odina has a uniform motion with constant velocity and zero acceleration.

We will calculate Odinas velocity for the first 2s which will give us the velocity for the entire motion. 

Distance moved: s = 2.6 m

Time taken: t = 2s

Velocity: \(v=\frac{s}{t}\)

\(v=\frac{2.6}{2}=1.3 \mathrm{~s}\)

Hence Odina moves with a velocity of 1.3m/s for the entire trip. 

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full solution

Title Physics: Principles & Problems 9 
Author Paul W Zitzewitz
ISBN 9780078458132

3. Odina walked down the hall at school from the cafeteria

Chapter 2 textbook questions

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