College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Topic Video
Question
Transcribed Image Text:Problem 1. You are driving at 31.0 m/s when the truck ahead of you comes to a halt 200.0 m away from
your bumper. Your brakes are in poor condition and you decelerate at a constant rate of 2.5 m/s.
(a) How close do you come to the bumper of the truck?
(b) How long does it take you to come to a stop?
(c) Graph v versus t for the motion.
Expert Solution
arrow_forward
Step 1 Distance from the bumper of truck
Equations of kinematics are as follow:
Values given in the question are as follow:
Distance traveled by your vehicle before comes at rest,
Substitute known values in equation-1):
Distance between you and truck when your vehicle comes to rest,
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 1 images
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
- A stone is thrown vertically upward with an initial speed of 20 m/s. When it returns, it falls into a hole that is 10.0 m deep. How long (in seconds) is the rock in the air, from the instant it is tossed until it hits the bottom of the hole? Use -9.80 m/s2 for the local acceleration due to gravity and assume no significant air resistance.arrow_forwardA car and a train move together along straight, parallel paths with the same constant cruising speed vo. At t = 0 the car driver notices a red light ahead and slows down with constant acceleration -a0. Just as the car comes to a full stop, the light immediately turns green, and the car then accelerates back to its original speed v0 with constant acceleration a0. During the same time interval, the train continues to travel at the constant speed v0. How much time does it take for the car to come to a full stop? How much time does it take for the car to accelerate from the full stop to its original cruising speed?arrow_forwardA roly-poly bug moves on the x axis. The bug has a variable velocity which is denoted by 2 v = t² - 2.50t.t is time in seconds and v is meters per second. The origin of the roly-poly bug is at t=0. Your job is to figure out the following after 3s have passed. Be sure to use the correct amount of sig figs! a) Velocity of the bug b) The bugs acceleration c) The bugs position THIS IS How I ROLLarrow_forward
- 1. During a braking test, a car is brought to rest beginning from an initial speed of 60 mi/h in a distance of 120 ft. With the same constant deceleration, what would be the stopping distance "s" from an initial speed of 80 mi/h? Ans. 213 ftarrow_forwardA sprinter reaches his maximum speed in 2.0 seconds from rest with constant acceleration. He then maintains that speed and finishes the 100 yards in the overall time of 9.67 seconds. Determine his maximum speed Vmax. t = 0 100 yd- t = 2.0 sec Answer: Vmax i t = 9.67 sec ft/secarrow_forwardA record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.55 m/s2 for 10.0 s. 2. Maintain a constant velocity for the next 1.00 min. 3. Apply a constant negative acceleration of −9.03 m/s2 for 2.82 s. (a) What was the total displacement for the trip? (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip?arrow_forward
- A car starts from rest, then accelerates at a constant rate over a distance of 57 m. It then immediately decelerates at a constant rate over a distance of 113 m. The entire trip lasts a total duration of 27.5 s. What were the magnitudes of the car s accelerations for the speedup and slowdown stages respectively? The car comes to a complete stop at the end of the braking phase. a. 4.11 m/s^2, then 2.07 m/s^2 b. 1.34 m/s^2, then 0.68 m/s^2 c. 2.07 m/s^2, then 4.11 m/s^2 d. 0.45 m/s^2, then 0.45 m/s^2arrow_forwardA car traveling east at 45.7 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25.0 m/s in 3.00 s. (a) What is the magnitude and direction of the car's acceleration as it slows down? magnitude m/s2 direction ---Select--- east west south north (b) How far does the car travel in the 3.00-s time period? marrow_forwardA record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.10 m/s² for 18.0 s. 2. Maintain a constant velocity for the next 1.50 min. 3. Apply a constant negative acceleration of -9.02 m/s² for 4.19 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 m/s leg 3 m/s complete trip m/sarrow_forward
- A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.05 m/s² for 16.0 s. 2. Maintain a constant velocity for the next 1.80 min. 3. Apply a constant negative acceleration of -9.25 m/s² for 3.55 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 leg 3 complete trip m/s m/s m/sarrow_forwardYou get in your car and drive north, accelerating up to 60mph. Draw your velocity vector and acceleration vector some time during your acceleration. How would these change if you encountered traffic and started to brake?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction 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 Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College 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