- #1

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**Find the displacement on the position vs time**

**The graph is here: https://session.masteringphysics.com/problemAsset/1925742/5/Mazur1e.ch2.p12.jpg**

**My attempted answers were: 5m, +5m**

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- Thread starter Manh
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- #1

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- #2

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What exactly does the question ask you to do?

- #3

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- #4

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Your answer looks right to me. It might be worth posting the exact wording, just in case.

- #5

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Express your answer in terms of unit vector i^. To denote unit vectors in your answer, be sure to select the 'unit vector' button.

= ------- m

Similar picture of the tool: http://help.pearsoncmg.com/masterin...magesStudent/numeric_units_provided_html5.png

So I copy and paste word by word of the question but I wonder if my answers were wrong because it had to something with 'unit vector' button or signs. I clearly see the form of filling in the blank already has a unit of meter (m). Since it is a computational homework, I really don't know what it wanted me to do.

- #6

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In the blue menu bar at the top of the screenshot, the two leftmost items have white symbols on a grey background. I would guess that clicking (or hovering over?) these produces a pull-down menu. In particular, the leftmost looks like it might hold a collection of useful mathematical symbols, such as a unit vector. If not, try the other one, which appears to be for Greek characters etc.

Express your answer in terms of unit vector i^. To denote unit vectors in your answer, be sure to select the 'unit vector' button.

= ------- m

Similar picture of the tool: http://help.pearsoncmg.com/masterin...magesStudent/numeric_units_provided_html5.png

So I copy and paste word by word of the question but I wonder if my answers were wrong because it had to something with 'unit vector' button or signs. I clearly see the form of filling in the blank already has a unit of meter (m). Since it is a computational homework, I really don't know what it wanted me to do.

- #7

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I see the unit vector button now and so the answer is +5 i^, right?

- #8

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Yes.I see the unit vector button now and so the answer is +5 i^, right?

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