Part D only please 3. This is a problem illustrating the use of dimensional analysis. Just by thinking about the dimensionality ofrelevant parameters, we can work out the form of a plausible equation to tell us something useful-this is whatwas shown in the E = mc² example in lecture. For this problem, we will consider an everyday situation: if youthrow a ball straight up, how high will it go before it starts to fall back down?This is a question that can be answered precisely using kinematics (as we will see in chapter 2), or usingconservation of energy (as we will see in chapter 7). If you have studied physics before, you may already knowhow to use one or both of these methods to derive an equation for the ball's maximum height. It would alsobe easy to look up such an equation on the internet (please don't!). But the point of this problem is to see howmuch we can figure out just by using dimensional analysis, without using any additional physics knowledge.We're looking for a height-let's call it h. The height should have dimensions of length: [h] = L. Now, whatmight this height depend on? We know from experience that the faster the ball's initial speed, the higher it willbe able to go. So the initial speed, to, will be important. What makes the ball slow down and eventually comeback down? Air resistance might play a part, but let's ignore that for now to keep things as simple as possible.(Later, we will discuss how to take air resistance into account, and how to tell when it's a good approximation toneglect it.) Ignoring air resistance, the only thing pulling down on the ball is the Earth's gravity. So we shouldexpect the Earth's gravitational field strength, g = 9.8 m/s², to be relevant. Also, objects with larger masses feelmore gravitational force (i.e., they are heavier), so the ball's mass, m, may be relevant.Is there anything else that the maximum height might depend on? There are lots of properties of the ballthat are pretty clearly irrelevant-its color, how much it cost, and so on. The ball's diameter and surface texturewould be important for its interactions with the air, but since we are neglecting air resistance, these will notplay a role. The initial height obviously matters: the higher the ball starts off, the higher it will end up. But let'sagree to zero out the initial height; I will represent the difference between the lowest and highest positions¹.So we're expecting that I will be determined by some combination of to, 9, and m. We know that these threequantities cannot be added together, because they have different dimensions. The only thing we can do ismultiply them. We can writeh=C(vo) (m)" (g)".Here C represents a dimensionless constant (i.e., a pure number with units), and x, y, and representpowers that o, m, and g might be raised to. The powers x, y, and are also dimensionless; they may bepositive, negative, or zero, and in general they may be integers or fractions.a) Figure out the appropriate values for the powers x, y, and so that the dimensions match on both sides ofthis equation. (Hints: m has dimensions of mass (M); v is a speed, with dimensions L/T; g is an acceleration,with dimensions L/T². Review the lecture video with the E = mc² dimensional analysis example for help.)¹The initial height also very slightly affects the value of g-see chapter 13-but we can safely neglect this for now.b) Explain why it is not possible to determine the value of the constant C using dimensional analysis alone.Even without knowing the value of C, we can get a lot of information what we've figured out so far about theequation for h. Answer the following questions based on your results from part (a):c) What if the mass of the ball were increased (with its initial speed remaining unchanged)? Would themaximum height of the heavier ball be greater than, less than, or equal to the original? Explain. 1The initial height also very slightly affects the value of g-see chapter 13-but we can safely neglect this for now.b) Explain why it is not possible to determine the value of the constant C using dimensional analysis alone.Even without knowing the value of C, we can get a lot of information what we've figured out so far about theequation for h. Answer the following questions based on your results from part (a):c) What if the mass of the ball were increased (with its initial speed remaining unchanged)? Would themaximum height of the heavier ball be greater than, less than, or equal to the original? Explain.d) What if the same ball were thrown with the same initial speed on another planet with stronger gravity.(i.e., if the value of g were larger?) Would the maximum height of the ball on the new planet be greater than,less than, or equal to the original? Explain.e) What if the same ball were thrown, on Earth, with a higher initial speed? In particular, let's say the initialspeed were doubled. What would happen to the maximum height-would it be the same, half the initial value,3 times the initial value, or what? Explain.

Answered: d) What if the same ball were thrown…

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...