Discussion board

Learning Goal: I’m working on a physics discussion question and need support to help me learn.

Hello , i have some work to do , everything is explained below .

Discussion beard

You will not automatically be given 10 points for providing an initial and reply post. Your grade will be determined by how well you followed directions and whether you addressed all of the questions indicated in the instructions identified. Both initial and reply posts must be written using your own words. Any copying and pasting of information from any source (including your friends) will automatically result in a grade of 0.


It’s all about vectors this week! They are important and necessary for you to be able to learn physics for the rest of the semester. So, let’s get good at them now. Here’s your chance to really develop an intuitive understanding of how vectors work. Play with this PHET simulation (Links to an external site.) see this link https://phet.colorado.edu/sims/html/vector-additio… to learn about vectors. Use the 1 D tile to start, then switch to the 2 D tile and then the lab tile. Just play, observe, and think about what you have learned from your assigned reading.

Finally, select the Equations tile. Use the settings in the images below:

PHET Vector settings-1.JPG and PHET Vector settings 2.JPGandPHET Vector settings 4.JPG

At the top of the simulation make sure this setting for adding vectors is selected.


Notice the equations at the top of the simulation. The images below the equations on the graph paper correspond directly with the equations. They show in the equations that vector d is being added to vector e and the resultant is f. On the graph paper, you see that the first image is vector d, the second image is vector e, and the third image shows how they graphically add together to produce the resultant vector f. Notice that the x components (the horizontal legs) are added together to form the x component of the resultant vector e. Notice that the y components (vertical legs) of vectors d and e add together to form the y component of the resultant vector f.

Your Initial Post:

In your initial post verify the length of the x and y components of the resultant vector f by adding the x components of vector d and vector e together. Add the y components of vector d and e together. First, you will need to resolve vector d into components.

Below is an example of finding the x component of a different vector e. (You will need to find both of the x and y components your vector d.

PHET Trig Triangle e.JPG



Show your work. You can use the Canvas Math editor if needed. (It’s the square root of x in the above toolbar.) If you need trig help this website (Links to an external site.) https://flexbooks.ck12.org/cbook/ck-12-interactive… has a video and several excellent interactives to help you learn the trig needed for the right triangle. Take your time to learn this. It’s very important. (Do you need to memorize identities? No. Only the Pythagorean Theorem is needed for this course.)

Reply to a Classmate Post :

(I’ll send the classmate’s response later because I won’t be able to read their responses unless I first post mine).

Reply to a classmate who doesn’t have a reply yet and correct any mistakes they may have made along with an explanation. If they did everything correctly identify what they did the best and explain why it was particularly good. Did it help your learning? Explain.

In your reply explain the difference between what we mean by components and resultants. Using the Pythagorean Theorem to show how we can calculate the magnitude of vector f from the components you found in your initial post. Next, find the resultant angle of vector f. Show one additional way that you could find the magnitude of vector f using any values from the vector f triangle.

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