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Ch 01: Units, Physical Quantities & Vectors

Chapter 1, Problem 1

For the vectors A and B in Fig. E1.24, use a scale drawing to find the magnitude and direction of (a) the vector sum A + B

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welcome back everybody. We are given two vectors P. And Q. And we have to find the graph of P plus Q. Here are our answer choices down below. So I'm gonna go ahead and redraw our graph so that we can find P plus Q. Here is going to be my Y. Axis and my X. Axis. Let me go ahead and label those appropriately with our X. N. Y. And we're just going to start by graphing starting from the origin. He looks something like this. Let me actually try that one more time. He looks something like this. Yeah, that looks about right. So I'm gonna go ahead and label that vector P. Now let's go ahead and draw Q. So what we're gonna do is we're gonna start at the tail end of P. And then we were gonna draw you. So that goes up into the left here. I'd probably say that looks about right. This is going to be our cue. Now we are going to use the tip to tail method to figure out P plus Q. So we are going to start from where we begin which was the origin and then draw a vector to where we stopped. And this is going to be our P plus Q growing down here. Just a little bit. This corresponds most to our answer choice of C. You can see it right there. Thank you guys so much for watching. Hope this video helped. We will see you all in the next one