Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 3EAP
Larry leaves home at 9:05 and runs at constant speed to the lamp-post seen in FIGURE EX2.3. He reaches the lamppost at 9:07, immediately turns, and runs to the tree. Larry arrives at the tree at 9:10.
a. What is Larry’s average velocity, in m/min, during each of these two intervals?
b. What is Larry’s average velocity for the entire run?
FIGURE EX2.3
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A bullet is shot straight up into the air from ground level. It reaches a maximum height at h = 658 m.
a. Calculate the initial speed of the bullet, in m/s.
b. Using your previous results, calculate the total flight time, tt in seconds, until the bullet reaches the ground.
Situation 01. Samantha has a height of 1.83 meters measured from the ground surface. She then lifts
a rock and throw it straight upward giving it an upward acceleration coming from rest of 35.0 m/s?
for 64cm. The ball was released 2.20m above the ground.
a. How high above the ground does the rock go?
b. Compute the time she must get out of its way before it returns exactly at her height.
a.Members of the froghopper family of insects (family Cercopoidea) can accelerate from rest to 0.84 m/s in 5.80 ms. What is the acceleration (in m/s2)?
Enter the numerical part of your answer, rounded to three significant figures.
b.A western honey bee (Apis mellifera) flies 3.51 m north and then 6.31 m east. What is its displacement from the starting position?
Enter only the numerical part of your answer (in m) to the nearest integer.
Chapter 2 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - FIGURE Q2.4 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.5 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.6 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.7 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.8 shows six frames from the motion...Ch. 2 - You’re driving along the highway at a steady speed...Ch. 2 - A bicycle is traveling east. Can its acceleration...
Ch. 2 - (a) Give an example of a vertical motion with a...Ch. 2 - A ball is thrown straight up into the air. At each...Ch. 2 - A rock is thrown (not dropped) straight do from a...Ch. 2 - FIGURE Q2.14 shows the velocity-versus-time graph...Ch. 2 - Alan leaves Los Angeles at 8:00 A.M. to drive to...Ch. 2 - Julie drives 100 mi to Grandmother’s house. On the...Ch. 2 - Larry leaves home at 9:05 and runs at constant...Ch. 2 - FIGURE EX2.4 is the position-versus-time graph of...Ch. 2 - FIGURE EX2.5 shows the position graph of a...Ch. 2 - A particle starts from x0=10matt=0s and moves with...Ch. 2 - FIGURE EX2.7 is a somewhat idealized graph of the...Ch. 2 - FIGURE EX2.8 shows the velocity graph for a...Ch. 2 - FIGURE EX2.9 shows the velocity graph of a...Ch. 2 - FIGURE EX2.7 showed the velocity graph of blood in...Ch. 2 - Prob. 11EAPCh. 2 - FIGURE EX2.1 2 shows the velocity-versus-time...Ch. 2 - a. What constant acceleration, in SI units, must a...Ch. 2 - A jet plane is cruising at 300 m/s when suddenly...Ch. 2 - a. How many days will it take a spaceship to...Ch. 2 - Prob. 16EAPCh. 2 - A speed skater moving to the left across...Ch. 2 - A Porsche challenges a Honda to a 400 m race....Ch. 2 - Acar starts from rest at a stop sign. It...Ch. 2 - Prob. 20EAPCh. 2 - A student standing on the ground throws a ball...Ch. 2 - A rock is tossed straight up from ground level...Ch. 2 - 23. When jumping, a flea accelerates at an...Ch. 2 - Prob. 24EAPCh. 2 - A rock is dropped from the top of a tall building....Ch. 2 - A skier is gliding along at 3.0 m/s on horizontal,...Ch. 2 - A car traveling at 30 m/s runs out of gas while...Ch. 2 - Prob. 28EAPCh. 2 - A snowboarder glides down a 50-m-long, 15° hill....Ch. 2 - A small child gives a plastic frog a big push at...Ch. 2 - FIGURE EX2.31 shows the acceleration-versus-time...Ch. 2 - Prob. 32EAPCh. 2 - A particle moving along the x-axis has its...Ch. 2 - A particle moving along the x-axis has its...Ch. 2 - The position of a particle is given by the...Ch. 2 - The position of a particle is given by the...Ch. 2 - Particles A. B. and C move along the x-axis....Ch. 2 - A block is suspended from a spring, pulled down,...Ch. 2 - A particle’s velocity is described by the function...Ch. 2 - Prob. 40EAPCh. 2 - Prob. 41EAPCh. 2 - A particles velocity is given by the function vx=...Ch. 2 - A ball rolls along the smooth track shown in...Ch. 2 - Draw position, velocity, and acceleration graphs...Ch. 2 - FIGURE P2.45 shows a set of kinematic graphs for a...Ch. 2 - FIGURE P2.46 shows a set of kinematic graphs for a...Ch. 2 - The takeoff speed for an Airbus A320 jetliner is...Ch. 2 - You are driving to the grocery store at 20 m/s....Ch. 2 - You’re driving down the highway late one night at...Ch. 2 - Two cars are driving at the same constant speed on...Ch. 2 - You are playing miniature golf at the golf course...Ch. 2 - The minimum stopping distance for a car traveling...Ch. 2 - A cheetah spots a Thomson’s gazelle, its preferred...Ch. 2 - You are at a train station, standing next to the...Ch. 2 - A 200 kg weather rocket is loaded with 100 kg of...Ch. 2 - A 1000 kg weather rocket is launched straight up....Ch. 2 - A lead ball is dropped into a lake from a diving...Ch. 2 - A hotel elevator ascends 200 m with a maximum...Ch. 2 - A basketball player can jump to a height of 55 cm....Ch. 2 - You are 9.0 m from the door of your bus, behind...Ch. 2 - Ann and Carol are driving their cars along the...Ch. 2 - Amir starts riding his bike up a 200-m-long slope...Ch. 2 - A very slippery block of ice slides down a smooth...Ch. 2 - Bob is driving the getaway car after the big bank...Ch. 2 - One game at the amusement park has you push a puck...Ch. 2 - A motorist is driving at 20 m/s when she sees that...Ch. 2 - Nicole throws a ball straight up. Chad watches the...Ch. 2 - David is driving a steady 30 m/s when he passes...Ch. 2 - A cat is sleeping on the floor in the middle of a...Ch. 2 - Water drops fall from the edge of a roof at a...Ch. 2 - I was driving along at 20 m/s, trying to change a...Ch. 2 - As an astronaut visiting Planet X, you’re assigned...Ch. 2 - Your goal in laboratory is to launch a ball of...Ch. 2 - When a 1984 Alfa Romeo Spider sports car...Ch. 2 - The two masses in FIGURE P2.75 slide on...Ch. 2 - In Problems 76 through 79, you are given the...Ch. 2 - In Problems 76 through 79, you are given the...Ch. 2 - In Problems 76 through 79, you are given the...Ch. 2 - In Problems 76 through 79, you are given the...Ch. 2 - A rocket is launched straight up with constant...Ch. 2 - Careful measurements have been made of Olympic...Ch. 2 - III Careful measurements have been made of Olympic...Ch. 2 - A sprinter can accelerate with constant...Ch. 2 - A rubber ball is shot straight up from the ground...Ch. 2 - The Starship Enterprise returns from warp drive to...
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 swimmer bounces almost straight up from a diving board and falls vertically feet first into a pool. She starts with a speed of 3.4 m/s and her takeoff point is 1.9 m above the pool's surface. a. For how long are her feet in the air , in seconds? here is my ans. 0.34? b. What is the height above the board, in meters, of her highest point? c. What is her velocity , in meters per second, when her feet hit the water? assume the vertical component is positive upwards.arrow_forwardSamantha has a height of 1.83 meters measured from the ground surface. She then lifts a rock and throw it straight upward giving it an upward acceleration coming from rest of 35.0 m/s^2 for 64 cm. The vall was released 2.20 m above the ground. a. How high above the ground does the rock go? b. Compute the time she must get out of its way before it returns exactly at her height.arrow_forwardA particle moves in one dimension in such a way that its velocity is given by v(t) = (8 m/s3)t2 - 10 m/s. Its position at t=0 is 0. a. Find the particle's acceleration at t=5 seconds. b. What is its position at t=2 seconds?arrow_forward
- A stone is thrown vertically upward with an initial velocity of 3 m/sec from the top of a tall building. The stone strikes the ground 4 second later. a. What is the maximum height reached by the stone above the building? Ans. S = 0.459 m b. What is the height of the building? Ans. H = 66.331 m c. What is the velocity of the stone as it strikes the ground? Ans. V = 36.20 m/secarrow_forwardQ1.1 An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. 3.65 m 1.55 m a. Will the rock reach the top of the wall? If so, how fast is it moving when it reaches the top. If not, what initial speed must it have to reach the top? b. To defend the castle, a rock is thrown downwards from the top of the wall with an initial speed of 7.40 m/s. What is this rock's speed as it passes the height of 1.55 m from the ground? c. Does the change in speed of the downward moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? Explain physically why it does or does not agree.arrow_forwardInclude a picture or description of your coordinate system (origin, positive direction).arrow_forward
- b. A car's velocity as a function of time is given by V (t) = a+ Bßt² , where a = 3.00m/s and B= 0.100 m/s³. I. Calculate the average acceleration for the time interval t= 0 to t= 5.00s. Calculate the instantaneous acceleration fort=0 and t = 5.00s. II. III. Draw the Velocity - Time graph for the car's motion between t=0 and t= 5.00s. ||arrow_forwardThe first astronaut has landed on Mars. Conducting some physics experiments, she drops a hammer from rest from a height of 2.01 m and uses a stopwatch to measure that the hammer takes 1.04 s to hit the ground. A. Determine the magnitude of the acceleration due to gravity on Mars. B. She then throws the hammer straight up into the Martian sky. If she comes back to her hand in 4.20 s, with what speed did she throw it?arrow_forwardLarry leaves home at 09:05 and runs at constant speed to the lamppost seen in figure. He reaches the lamppost at 09:07, immediately turns, and runs to the tree. Larry arrives at the tree at 09:10. a. What is Larry's average velocity, in m/minute, during each of these two intervals? b. What isarrow_forward
- A ball rolls down from the top of an inclined plane. The displacements for the first 3 seconds are 2.40 m, 9.84 m, and 22.00 m. a. What is the average velocity of the ball at the end of 1s? 2s? 3s? b. What is the average acceleration of the ball at the end of 1s? 2s? 3s? c. What is the average of the accelerations obtained in (b)?arrow_forward5. A football is kicked vertically upward from the ground and a student gazing out of the window sees it moving upward passed him at 5m/s. The window is 10 meters above ground a. How high does the ball go above the ground? b. How long does it take to go Find the velocity and acceleration 1/2 second after it left the ground. Zarrow_forwardClarissa is running at 5m/s to catch the school bus, which is stopped to a nearby bus stop. When Clarissa is still 40 meters away from the bus, the bus is already moving with a constant acceleration of 0.170 m/s2 . A. Compute the time and the distance does Clarissa have to run before she can overtake the bus. B. At the instant she reaches the bus, how fast is the bus moving?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
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