DONATEJOINSIGN INASHBOARDCLASSESLIBRARYSUBJECTSO EXPLORE VWhat do you want to learn today?Going over the speed limit can result in fatal accidentsThe time it takes you to get to a destination is based on average velocity, not instantaneousghtsvelocity.While instantaneous speed is the car's speed at a particular instant in time, average speed isa measure of distance traveled over a period of time.For someone who is running 5 minutes late to an appointment that is 30 minutes away at 65mph, he would need to drive at an average speed of 78 mph. This means he would have totravel at a significantly higher velocity if accounting for realistic obstacles such as slowercars and stoplights.Can You Apply It?Using the information provided above, answer the following questions.1. Why is it unrealistic to think you will get to your destination on time if you are running late inthe scenario described above?2. If your average velocity for the first half of a trip is 30 mph and 20 mph for the second half,what is your overall velocity?3. How much faster would someone reach their destination if they increased their averagevelocity from 50 mph to 60 mph on a 30 mile trip?

Real-life situations are different from the theoretical solutions we get in a notebook. Therefore,…

Answered: 1. Why is it unrealistic to think you…

College Physics

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)...

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1. Consider a car that initially travels in the positive direction at a speed of 30 m/s. The car uniformly speeds up to 40 m/s in a time of 5 s. Find the following: a. The acceleration of the car. b. The distance traveled over the entire 5.0 seconds. C. The distance traveled during the 2 s interval where the clock goes from t = 2 s, to t= 4 s. (Assume the 5 s time interval begins with the time = 0s.)
Q13. According to the manufacturer, a Porsche Spyder reaches 0-100 kmph in 3 seconds. Aperson starts this car from rest and after reaching the speed of 100 kmph, maintains thisspeed for a further 60 seconds. He then decelerates at a rate, given by a=-2t so that the carcomes to a stop. Determine the following:a. Total time of travel, starting from and ending at rest b. Total distance traveled
6-10 are wrong. Please tell me the right answers.
Vector u = <-7,3,-5> and vector v = <-1,1,0>. Find the cross product of 9(u X v)
Physics question
Suppose I drop a 60kg anvil from rest and from such a height that the anvil reaches a speed of 10m/s just before hitting the ground. Assume the earth was at rest before I dropped the anvil a. What is the earth's speed just before the anvil hits? b. How long would it take the earth to travel 1.0 micrometers at this speed?
You start out by driving 91 miles south in 2 hours and 21 minutes, and then you stop and park for a while. Finally you drive another 22 miles north in 2 hours and 37 minutes. The average velocity for your entire trip was 11.11 miles per hour to the south. How much time did you spend parked?
7. A car starts from rest and attains a speed of 47 m/s in 12 seconds. How far has the car travelled in 12 seconds? 8. Michael is driving his sports car at 20 m/s when he sees a dog on the road ahead. He slams on the brakes and comes to a stop in 5 seconds. What was the acceleration of Michael's car?
6. A train is moving with a constant speed. The train moves 60 meters for every 1.5 seconds that elapses. a. Assume that we get 40 by dividing 60 by 1.5. What is the name that is commonly given to a quantity represented by this number 40? b. To denote the quantity completely, what additional information must be given besides the number 40? c. How would you interpret the number 40 in this instance? Your answer should mention distance and time. d. Use your interpretation (not algebra) to find the distance the train moves in 2.5 seconds.
As a train accelerates uniformly it passes successive 850 meter marks while traveling at velocities 1.5 m/s and then 15 m/s. a. For the first mark of the journey, what is the acceleration of the train in m/s sq? b. Determine the train's velocity when it passes the next mark in m/s. c. Determine the time it takes to travel the 1.7-km distance in seconds.
4. CHALLENGE PROBLEM. John hopes to finish a 10,000-m run in less than 30.0 for him to reach the speed of 60 m/s? Direction: Solve the following problems. Show your complete solutions legibly a slow-moving dump truck. If he can accelerate at 5 m/s?, how long will it take 3. John is driving his sports car down a four-lane highway at 40 m/s. He overtakes 1. A golf ball rolls up a hill toward a miniature golf hole with a speed of 2.0 m/s and consume at an acceleration of 0.20 m/s² in order to achieve the desired time? min. After 27.0 min, there are still 1100 m to go. How many seconds must he Activity 2.11: One Dimensional Uniformly Accelerated Motion Problems 2. An airplane accelerated uniformly from rest at the rate of 5.0 m/s2 South for slows at a constant rate of 0.50 m/s2. What is its velocity after 2.0 s? 14 s. What final velocity did it attain? and concisely in a separate sheet of paper.
You and Sally are walking to a local restaurant for dinner and disagree about which path would be faster. You each decide to travel on your chosen paths. On your path, the distance to the restaurant is 1.7 miles and you walk at a rate of 4.0 mph. Sally walks at a rate of 4.2 mph and her path is longer at 1.9 miles. Who gets to get the restaurant first? How much earlier does the winner get to the restaurant, in hours or minutes?

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