Part AYou are driving through town at 13 m/s when suddenly a car backs outof a driveway in front of you. You apply the brakes and begindecelerating at 3.0 m/s.How much time does it take to stop?Express your answer using two significant figures.?t =SubmitRequest AnswerPart BAfter braking half the time found in part A, is your speed 6.5 m/s, greater than 6.5 m/s, or less than 6.5 m/s?O 6.5 m/sO greater than 6.5 m/sO less than 6.5 m/sSubmitRequest Answen

Answered: Image /qna-images/answer/790f934e-db47-40d8-929e-f24f310f57d7.jpg

Part A You are driving through town at 13 m/s when suddenly a car backs out of a driveway in front of you. You apply the brakes and begin decelerating at 3.0 m/s. How much time does it take to stop? Express your answer using two significant figures. Submit Request Answer • Part B After braking half the time found in part A, is your speed 6.5 m/s, greater than 6.5 m/s, or less than 6.5 m/s? O 6.5 m/s O greater than 6.5 m/s O less than 6.5 m/s Submit Request Answer

Part A You are driving through town at 13 m/s when suddenly a car backs out of a driveway in front of you. You apply the brakes and begin decelerating at 3.0 m/s. How much time does it take to stop? Express your answer using two significant figures. Submit Request Answer • Part B After braking half the time found in part A, is your speed 6.5 m/s, greater than 6.5 m/s, or less than 6.5 m/s? O 6.5 m/s O greater than 6.5 m/s O less than 6.5 m/s Submit Request Answer

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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PAGE 60. HOMEWORK CHAPTER 2 3 Drag racer starts from rest and accelerates over a quarter mile (402 m) strip in 5.80 sec. a) Find the racer's average velocity, in m/s. b) The instantaneous speed at the end of the strip is 250 mph (112 m/s). Find the average acceleration in m/sec².
Current Attempt in Progress A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.6 m/s²; after 4.5 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant velocity of 72.8 m/s overtakes and passes the entering car. The entering car maintains its acceleration. How much time is required for the entering car to catch up with the other car? t = i
Short computation The velocity of an object as a function of time is given by v(t) = b = ct- et²2, where v and t are in SI units. The other variables are given as b = 4.1 m/s, c = 4.1 m/s², and e = 1.5 m/s³. Determine the instantaneous acceleration of the object at time t = 0.38 s. a m/s² Remember to include a "-" if the acceleration turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.
1. A pick up is moving with an initial velocity of 12 m/s with a constant acceleration of 2.3 m/s? for 15 seconds. For the next 4.5 seconds it moves with a constant deceleration of 2.9 m/s². In the next 3.0 minutes it moves with a constant velocity. • What was the total displacement for the complete trip? • What is the average speed for the complete trip?
Problem 4
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Part A If a flea can jump straight up to a height of 0.500 m, what is its initial speed as it leaves the ground? v= 3.13 m/s Submit Previous Answers v Correct Part B How long is it in the air? t= 0.32 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Problem 3 A car is stopped at a red light, At t = 0, the light turns green, and the car begins to accelerate at a constant rate of 2.00 m/s2 The intersection that the car passes through is 20.0 meters wide. (a) How long does it take for the car to go through the intersection? Give your answer in units of seconds (s). (b) How fast is the car moving after it goes through the intersection? Give your answer in units of meters per second (m/s).
Can you have a positive or negative velocity but a position with the opposite value (negative or positive)? Explain why or why not. (Explain clear and not too hard to understand) Can you have zero velocity but a positive or negative position? Give an easy example.
Help with the following question: part a and b
Question 8 of 10 View Policies Current Attempt in Progress -/1.25 E ! A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 6.1 m/s²; after 3.7 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant velocity of 68.1 m/s overtakes and passes the entering car. The entering car maintains its acceleration. How much time is required for the entering car to catch up with the other car? \t= i eTextbook and Media GO Tutorial Save for Later Last saved 1 second ago. Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes. M B Attempts: unlimited Submit Answer
Freight trains can produce only relatively small accelerations and decelerations. Leg 1 What is the final velocity and position of a freight train that accelerates at a rate of 0.0700 m/s² for 4.00 minutes, starting with an initial velocity of 2.00 m/s? (a) • Using the notation Ax= x-xo for displacement, x for final position, x。 for initial position, v for final velocity, vo for initial velocity, a for acceleration, and t for time, determine what quantities are known and what quantities are unknown. • Enter the values of some known quantities below. • Make sure you account for the signs of the vectors using the coordinate system in Part 1. Enter to 3 significant figures. Enter with correct signs. Vo = a = t = (b) Is the motion of the freight train one with constant velocity or constant acceleration? This will help you choose the correct equations of motion. Ax= vt (c) Choose an appropriate equation of motion from List 1 to calculate the final velocity of the train after 4.00 minutes.…