(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

#5 and #6 of the attached pdf on page 5 (graph on page 4 relates to said problems)

Note: The professor did not cover how to do a problem like this, and the book does not have a similar problem, nor any other handouts. This definitely was a unique question.

I'm unsure if I should list the units or not within the interval notation.

I can't find a single justification on the web whether or not do such.

2. Relevant equations

Should I be putting all of #5 and #6 in interval notation? How so?

What would be a proper way to word it?

3. The attempt at a solution

#5 Answer?

(45, 87.5)

#6 Answer?

[0, 45)U(87.5, 100]

Right?

Say that I want to express the time interval during which a particle is moving to the right.

Time is in seconds...

At 0 and between 45 seconds, the particle is moving to the right.

AND

Between 87.5 seconds and 100 seconds, the particle is moving to the right.

Or would I list [0 s, 45 s)U(87.5 s, 100 s]

Basically, this has to do with a physics problem.

Moving to the right means the particle is moving in a positive direction.

There are other times during which it moves in a negative direction (left); that occurs between 45 seconds and 87.5 seconds.

At t = 45s and t=87.5s, y=0

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# Homework Help: Interval notation and specifying units (v vs. t graph)

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