Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 31P
Detemine the stopping distances for an automobile going a constant intial speed of 95 km/h and human reaction time of 0.40s: (a) for an acceleration a=- 3.0 m/s2, (b) for a=-6.0 m/s2.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A car comes to a complete stop from an initial speed of 60 mi / hr in a distance of 200 ft. With the same constant acceleration, what would be the stopping distance s from an initial speed of 55 mi / hr?
The driver of a car traveling at 110km/h slams on the brakes so that the car undergoes a constant acceleration, skidding to a complete stop at 4.5s . What is the average acceleration of the car during braking?
The head of a rattlesnake can accelerate at 50 m/s2 in striking a victim. If a car could do as well, how long would it take to reach a speed of 100 km/h from rest?
Chapter 2 Solutions
Physics: Principles with Applications
Ch. 2 - Two small heavy balls have the same diameter but...Ch. 2 - Does a car speedometer measure speed, velocity, or...Ch. 2 - When an constant velocity, does its during any...Ch. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - Give an example where both the velocity and...Ch. 2 - Can an object be increasing in speed as its...Ch. 2 - Two cars emerge side by side from a tunnel. Car A...
Ch. 2 - A baseball player hits a ball straight up into the...Ch. 2 - As a freely falling object speeds up, what is...Ch. 2 - You travel from point A to point B in a car moving...Ch. 2 - Can an object have zero velocity and nonzero...Ch. 2 - Can an object have zero acceleration and nonzero...Ch. 2 - Which of these motions is not at constant...Ch. 2 - Describe in words the motion plotted in Fig. 2-32...Ch. 2 - Describe in words the motion of the object graphed...Ch. 2 - Which of the following should be part of solving...Ch. 2 - In which of the following cases does a car nave a...Ch. 2 - At time t = 0 an object is traveling to the right...Ch. 2 - A ball is thrown straight up. What are the...Ch. 2 - You drop a rock off a bridge. When the rock has...Ch. 2 - You drive 4 km at 30 km/h and then another 4 km at...Ch. 2 - A ball is dropped from the top of a tall building....Ch. 2 - A ball is thrown downward at a speed of 20 m/s....Ch. 2 - A car travels along the x axis with increasing...Ch. 2 - If you are driving 95 km/h along a straight road...Ch. 2 - What must your car's average speed be in order to...Ch. 2 - A particle at t1= 2.0 s is atx1=4.8cm and at t2=...Ch. 2 - A rolling ball moves from x1 =8.4 cm to x2 =-4.2...Ch. 2 - A bird can fly 25 km/h. How long does it take to...Ch. 2 - According to a rule-of-thumb, each five seconds...Ch. 2 - You are driving home from school steadily at 95...Ch. 2 - Prob. 8PCh. 2 - A person jogs eight complete laps around a 400-m...Ch. 2 - Prob. 10PCh. 2 - A car traveling 95 km/h is 210 m behind a truck...Ch. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16PCh. 2 - A sports car accelerates from rest to 95 km/h in...Ch. 2 - Prob. 18PCh. 2 - 19.(II) A sports car moving at constant velocity...Ch. 2 - Prob. 20PCh. 2 - 21.(II) A car moving in a straight line starts at...Ch. 2 - A car slows down from 28 m/s to rest in a distance...Ch. 2 - A car accelerates from 14 m/s in 6.0 s. What was...Ch. 2 - A light plane must reach a speed of 35 m/s for...Ch. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - 27.(II) A car slows down uniformly from a speed of...Ch. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Detemine the stopping distances for an automobile...Ch. 2 - A driver is traveling 18.0 m/s when she sees a red...Ch. 2 - 33.(II) A 75-m-long train begins uniform...Ch. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - 37.(III) Marry and Sally are in a foot race (Fig....Ch. 2 - 38.(III) An unmarked police car traveling a...Ch. 2 - A stone is dropped from the top of a cliff. It is...Ch. 2 - Estimate (a) how long it look King Kong to fall...Ch. 2 - A ball player catches a ball 3.4 s after throwing...Ch. 2 - Prob. 42PCh. 2 - A kangaroo jumps straight up to a vertical height...Ch. 2 - The best rebounders in basketball have a vertical...Ch. 2 - An object starts from rest and fails under the...Ch. 2 - Prob. 46PCh. 2 - Prob. 47PCh. 2 - A rocket rises vertically, from rest, with an...Ch. 2 - Prob. 49PCh. 2 - Prob. 50PCh. 2 - Prob. 51PCh. 2 - Prob. 52PCh. 2 - Prob. 53PCh. 2 - Prob. 54PCh. 2 - Prob. 55PCh. 2 - Prob. 56PCh. 2 - Prob. 57PCh. 2 - Prob. 58PCh. 2 - Prob. 59PCh. 2 - Prob. 60GPCh. 2 - Prob. 61GPCh. 2 - Prob. 62GPCh. 2 - Prob. 63GPCh. 2 - Prob. 64GPCh. 2 - Prob. 65GPCh. 2 - Prob. 66GPCh. 2 - Prob. 67GPCh. 2 - Prob. 68GPCh. 2 - Prob. 69GPCh. 2 - Prob. 70GPCh. 2 - Prob. 71GPCh. 2 - Prob. 72GPCh. 2 - Prob. 73GPCh. 2 - Prob. 74GPCh. 2 - Prob. 75GPCh. 2 - A conveyor belt is used to send burgers through a...Ch. 2 - Two students are asked to find the height of a...Ch. 2 - Prob. 78GPCh. 2 - A race car driver must average 200.0 km/h over the...Ch. 2 - Prob. 80GPCh. 2 - Prob. 81GPCh. 2 - Prob. 82GPCh. 2 - On an audio compact disc (CD), digital bits of...
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 car, initally at rest, accelerates at 8.9 m/s for a total of 2.7s. How far did it go in this time?arrow_forwardA car is travelling at a constant speed of 100 km.hr at the highway when the driver noticed that the bridge 10 m away is cut off. If the driver immediately applied the brakes upon noticing the cut off bridge, what must be his deceleration so he would not fall to the river?arrow_forwardA car is travelling at a constant speed of 100 km.hr at NLEX when the driver noticed that the bridge 10 m away is cut off. If the driver immediately applied the brakes upon noticing the cut off bridge, what must be his deceleration so he would not fall to the river?arrow_forward
- To stop the car, a car leaves a skid marks 200m long on the highway. Assuming a deceleration of 7.5m/s2, what must be the speed of the car before braking?arrow_forwardThe minimum distance required to stop a car moving at 35.0 mi/h is 40.0 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming the same rate of acceleration?arrow_forwardIs it possible for speed to be constant while acceleration is not zero?arrow_forward
- Is it possible for velocity to be constant while acceleration is not zero? Explain.arrow_forwardIn a slap shot a hockey player accelerates the puck from a velocity of 5.00 m/s to 40.0 m/s in the same direction. If this takes 3.33 ✕ 10−2 s, calculate the distance over which the acceleration acts.arrow_forwardWhat isbthe average speed of a car driven for the 4hrs trip if it has an average soeed of 180.0 km/h for first 3hrs, then an average speed of 20.0 km/h for the next hour?arrow_forward
- What is the initial velocity of a jeep uniformly accelerated at the rate of 0.65m/s2 so that it travels 0.95 km in 20 seconds?arrow_forwardA engineer was accidentally thrown(downwards) overboard at an initial velocity of 6m.sand was in complete free fall. Assuming from the railing to the surface of the water is 30m. howmany seconds does it take before he hits the water?arrow_forwardA runner is moving with a speed of 2.68[m/s]. How long will it take the runner to complete a 5.0[km] race? Express your answer in seconds. Ignore the time it takes to reach this speed, and assume the runner is always at this speed.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY