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Can you solve this pyshic problem.Ariwalks to a friend’s house. He walks 220 meters East. Herealized that he had confused his directions and walks 430 West. ...

Question

Can you solve this pyshic problem.Ariwalks to a friend’s house. He walks 220 meters East. Herealized that he had confused his directions and walks 430 West. Hearrives at his friend’s house very tired. His Apple watch recordedthat his entirewalk took 5 mins.a.What is distance traveled?b. What is Ari’s displacement?c. What is his average speedfor the whole trip?d. What is his average velocityfor the whole trip?e. Was Ari walking fast or slow? Explain your answer.

Can you solve this pyshic problem. Ariwalks to a friend’s house. He walks 220 meters East. He realized that he had confused his directions and walks 430 West. He arrives at his friend’s house very tired. His Apple watch recorded that his entirewalk took 5 mins. a.What is distance traveled? b. What is Ari’s displacement? c. What is his average speedfor the whole trip? d. What is his average velocityfor the whole trip? e. Was Ari walking fast or slow? Explain your answer.



Answers

Geoffrey drives from his home town due east at $90.0 \mathrm{km} / \mathrm{h}$ for 80.0 min. After visiting a friend for 15.0 min, he drives in a direction $30.0^{\circ}$ south of west at $76.0 \mathrm{km} / \mathrm{h}$ for 45.0 min to visit another friend. (a) How far is it to his home from the second town? (b) If it takes him 45.0 min to drive directly home, what is his average velocity on the third leg of the trip? (c) What is his average velocity during the first two legs of his trip? (d) What is his average velocity over the entire trip? (e) What is his average speed during the entire trip if he spent 55.0 min visiting the second friend?

We know speed. Define as distance over time and the speed can be calculated since we have a distance Troll denominators. Time for the journey if 18 minutes. And if you convert the minutes to hours, we know they are 60 minutes in every our ends we get a speak us what t Kilometers our next. Can we can we calculate the velocity off the motion? Well, velocity is a vector is to find as displacement over time to And the displacement is 10 0.3 kilometers. So 25 degrees southeast. So that's 2010.3 kilometers. Any time off. 18 minutes. Yeah, you couldn't, but the minutes to hours Oh, has 16 60 minutes And this is direction off 25 degrees from southeast. So our victor has magnitude direction. And if your calculation we get that this velocity is 34 0.3 kilometers per hour at 25 degrees from southeast last week Can we calculate the speed? Were there a ton journey? Well, speed again. Total distance over time T and the total distance covered is to times 12 you know, mentors. And this distance is covered in seven in the half hours. And this gives us the speed off the going to que No mittens. Oh,

So in this problem of student is traveling from home to the university for part A. She travels 12 kilometers in 18 minutes and it asked what the average speed is In order to calculate the average speed, we have to change kilometers into meters by multiplying by 1000 and we have to change minutes into seconds by multiplying by 60. Then we used the average speed equation distance divided by time to solve for the average speed, which is 11.1 meters per second. Part be asked for the average velocity. Velocity is different from speed and that has direction. So instead of being distance over time is a change in position over time. So in this case the change in position was 10.3 kilometers, which we then change into meters. But the amount of time to do this was the same because it's the same like travel. So then we take our change in position and divide. By the time we find that her average velocity was 9.54 meters per second, never being more precise, we would say that it was in the direction of 25 degrees south of east like stated in the problem now, Part C says that she stays at school and then goes back seven and 1/2 hours after she left home. So in order to figure out what the average speed and velocity for this entire trip is, we have to first figure out the total distance. So if it took 12 kilometers to go to school and 12 kilometers to go back, the total distance is 24 kilometers, which we then change into meters. We then have to take our seven and 1/2 hours of time and change that in two seconds by multiplying by 60 times 60 which is 3600. So we find that she traveled a distance of 24,000 meters in 2700 seconds. So using distance divided by time, we confined the speed of 0.89 meters per second for velocity. We have to think of the change in position. So if she went back to where she started, her change in position was zero. She actually didn't change her position at all and so we would say that the velocity is also zero meters per second

According to the given problem, the musician has to reach upto his consent hall within to ours. And total distance he covers is 1 22 miles. So to show the directions, Mr Fall, you will draw no South east. And this not so he's and the best that supposed a musician starts moving from this origin. Oh, it is given that he moves. Do you vest for the first 1.20 arse from the 1st 1.20 Ours. He moves view rest with a speed or 55 miles for, uh So the total distance traveled by him due west will be found using a simple equation. Distance equals speed in two time. 55 into a 1.0, which comes out to these 66 mice. And then he presented thieves 66 miles here like this. Suppose the sister distance 66 miles from Paul. Do okay? No, The remaining distance to be covered by him is remaining. Dispense will be covered by him. Will be 1 22 miners 66 which comes out to the 56 miles. And it is given that this distance it's traveled by him in a direction south Off list at an angle tarty degree. This is that second part of his journey. Which is it? An Anglo Hurt me degree. So here this angle. 30 degree. You sound off this. And the distance? Yes. 56 distance gave me is 56 miles. So in the first fire it has us with what averages? Still should he cover during inning distance? Average speed you covered this urinating dispense will be distance upon time. 56 miles divided by 48 minutes. And if I want to convert it into ours 56 miles. I fought the air by six p us and then the soldiers. We get 17 miles, but Ah, this is the answer For the first part? No. In the second part we have to find his average velocity. So in order to find his average velocity, we will have to find his displacement. And the displacement is this O b. So in order to find this displacement will be. First of all, we will find its components. And the component horizontal component is this and vertical component is this These are the components off this displacement. So in order to find these components? No. Let there be I m and M So component B m will be exactly equal to the vertical component off, baby. So in the second part of the question, me have to find B. M. So this B M may be exactly equal to the vertical component off a B in stay the cost. Peter, your baby is 56 miles, and this is cause her degree. So when we calculate it, we get it equal. Toby 48 point by miles. No, The second part is this old and or being, Whatever we say. So o m is comprising off Hooper's AM plus o a this a m and this poor or is known to us bitches 66 miles. And in order to find am again, if we will be helpful to us, so am is equal to or gentle component of this baby again. So om can be leading us. It is made up of two parts or a less am o e. Unless a M or is 66 miles and am is horizontal component a b sine pita. Uh, A because it is so meals here we have me dummy stayed here so we have to rectify it Here. This was a B scientist as this most of vertical component. So Parky, the M is goingto be scientific. Donny's 56 miles into half knees, 28 My eyes and all I am is going toe or e Bless AM or a exactly 66. Plus a M is horizontal component which is maybe cost for two degree. So 66 players 56 into cost 40 degree, which comes out to be 16 6 last 48 15 My eyes. If he heard them, we will get 114.5 miles. So overall displacement from oh Toby baby equal to be any square bless form a square square root. So this this place man or B in si Quito B m Square bless O M Square Square job, or BM, is 28 less 114.5 square which will become when the it square will give us that many people and 114 point fights where they give us Hardeen House end 110.25 And in these two we will get 13 house end here to 94. Why do five and making us square root. We will get one 17 wind, nine miles approximately the sister overall displacement and tiny stores. So the average velocity will be total displacement upon total time. And the displacement is 117.9 17.9 wise by to ours, which comes out to be 50. Yeah, 0.9 miles for our or we can say approximately 59 minds what are and the direction if we want to find its direction. Also, which is L far. So Colonel, far here can be given us b m by own I m means Danielle far. He was b m by O. M. And here the N is equal. Does windy it and all m is equal toe 114.5. So it comes out to be 0.2445 So l for is equal toe turning worse 0.244 flight with the help of our scientific calculator. Me getting don't equal toe her being 0.7 degrees. Do you? So pull this. This is the average velocity for the entire trip

So here for part A, we consider a displacement. Delta Axe would be equaling 8.50 kilometers per hour, multiplied by 35.0 minutes. And then we're multiplying this by one hour for every 60 minutes, and we have that the this would be plus 130 kilometres. So we have that the total displacement for the motorists would be equaling 180 kilometers. This would be our final answer for part A for part B. Then we want to find a total elapsed time. This would be dealt a tee total and this would be equaling 35.0 minutes plus 15.0 minutes. This would be multiplied by one hour for every 60 minutes plus 2.0 hours and we find that Delta T total is equaling 2.83 hours. So essentially her the motorists average velocity would be equaling Delta X over Delta T. So this would be equal in 180 kilometers divided by 2.83 hours and this is giving us 63.6 kilometers per hour. This would be our final average frontal answer for the average velocity for part B. That is the end of the solution. Thank you for watching


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