College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Topic Video
Question
a. If a car traveling at 23.6 m/s is brought to a full stop in 4.00 s after the brakes are applied, find the average acceleration during braking. If the acceleration is in the direction of the car's velocity, enter a positive value. If the acceleration is in the direction opposite to the car's velocity, enter a negative value. answer in m/s^2
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The acceleration of an object moving in a strange way has been modelled as a = e^x x.A) use integration by parts to find an equation to model the velocity v if v = ∫ e^x x dx (the x is the letter x not multiplication)B) is the problem any different if you find v = ∫ xe^x dx?arrow_forwardOne afternoon, a student was going home after attending a calculus class. For this reason, the student orders an online motorcycle taxi through the application. At the time of ordering, the online motorcycle taxi is in the position s = 2t² + 2t+4, where t is in units of time and s is in meters. a. Determine the average speed of the online motorcycle taxi at intervals of 3 minutes to 5 minutes. b. Determine the time when the instantaneous speed of the online motorcycle taxi is exactly the same as the average speed. NEED IN RUSH THANKSarrow_forwardAn electron with an initial speed of 4.56x10^5m/s enters a linear particle accelerator that is3.50 cm long. In this section, the electron is accelerated to a final speed of 3.25x10^5m/s a) . Calculate the magnitude of the acceleration of the electron. b) Determine the time of accelerationarrow_forward
- A body moves on a coordinate line such that it has a position s= f(t) = 1² - 5t+4 on the interval 0st≤9, with s in meters and t in seconds. a. Find the body's displacement and average velocity for the given time interval b. Find the body's speed and acceleration at the endpoints of the interval. c. When, if ever, during the interval does the body change direction? The body's displacement for the given time interval is (Type an integer or a simplified fraction.) m. The body's average velocity for the given time interval is m/s. (Type an integer or a simplified fraction.) HECEN The body's speeds at the left and right endpoints of the interval are m/s and (Type integers or simplified fractions.) OA. The body changes direction at t= S (Type an integer or a simplified fraction.) OB. The body does not change direction during the interval. m/s, respectively. n m/s² and m/s², The body's accelerations at the left and right endpoints of the interval are (Type integers or simplified fractions.)…arrow_forwardWhat is E and F?? Please help!arrow_forwardA particle moving along the x axis has acceleration in the x direction as function of the time given by a(t) = 6t²-t. For t=0 the initial velocity is 6.0 m/s. Determine the velocity when t = 1.0 s. Write here your answer. Include the units.arrow_forward
- Ce A webassign.net/web/Student/Assignment-Responses/submit?dep=27519463&tags=autosave#question3572106_11 (h) 0.0207 3 DETAILS A walker covers a distance of 2.2 km in a time of 32 minutes. What is the average speed of the walker for this distance in km/h? km/h 5. DETAILS A tortoise and a hare cover the same distance in a race. The hare goes very fast for brief intervals, but stops frequently, whereas the t hare. (a) Which of the two racers has the greater average speed over the duration of the race? OThe tortoise has the greater average speed since he was the winner. The hare has the greater average speed since he can go faster. Their average speeds are equal. OIt's impossible to determine who had the greater average speed without collecting data. (b) Which of the two racers is likely to reach the greatest instantaneous speed during the race? OThe tortoise has the greater instantaneous speed since he was the winner. OThe hare has the greater instantaneous speed since he can go faster.arrow_forwardA person driving a car suddenly applies the brakes. The car takes 4 s to come to rest while traveling 20 m at constant acceleration. Can the speed of the car immediately before the brakes were applied be determined without first determining the car’s acceleration? a No, because the acceleration is needed to use standard equations such as ∆x = v0t + 1/2 at2. b Yes, by determining the average speed while braking and doubling it. c No, because the fundamental relationship that defines velocity contains acceleration. d Yes, by dividing the distance (20 m) by the time (4 s).arrow_forwarda)Determine the magnitude of the acceleration for the speeding up phase. b)Determine the magnitude of the acceleration for the slowing down phase.arrow_forward
- A car travels in a straight line along a road. Its distance x from a stop sign is given as a function of time t by the equation x(t)=at2-Bßt3, where a = 2.25 m/s² and B = 0.0550 m/s³. Calculate the average velocity of the car for the time interval to = 0 tot = 3.00 s . %Darrow_forwardThe acceleration of a bus is given by ax(t) = αt, where α = 1.15 m/s3 is a constant. a. If the bus's velocity at time t1 = 1.05 s is 4.90 m/s, what is its velocity at time t2 = 2.20 s? b. If the bus's position at time t1 = 1.05 s is 6.05 m, what is its position at time t2 = 2.20 s?arrow_forwardA cheetah can reach the top speed of 114 km/h. A cheetah starts from rest and runs 48 m in a straight line, reaching a final speed of 94 km/h. 1. what's the average acceleration during sprint (m/s^2) 2. find displacment at t=3.0 s assuming constant acceleration throughout sprintarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON