The discussion revolves around determining the displacement of an object based on a position vs. time graph. Participants are attempting to interpret the question and clarify the requirements for expressing their answers correctly.
Some participants have provided guidance on how to use the unit vector button and have confirmed that the approach to calculating displacement appears correct. However, there remains uncertainty about the specific formatting required for the answer.
There is mention of computational homework constraints and the need to use specific formatting for answers, including unit vectors. Participants are also questioning whether their previous answers were incorrect due to misunderstanding these requirements.
Your answer looks right to me. It might be worth posting the exact wording, just in case.Manh said:It asks me to find the displacement of an object on the graph from 0 s to 80 s. I would subtract initial position (0 m) from final position (5 m) and got my attempted answers. However, they were incorrect. How would you do? Thank you!
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.Manh said:Determine the displacement of the object.
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.
Yes.Manh said:I see the unit vector button now and so the answer is +5 i^, right?