College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 10CQ
If the graph of the position of an object as a function of time is a straight line, what can you conclude about the acceleration of the object if the slope of the line is (a) positive, (b) negative, and (c) zero?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A train accelerates uniformly from
rest at station A to a maximum speed
of 72 km/h. The constant maximum
speed is maintained for a period of
time and the train then decelerates
uniformly until it comes to a stop at
station B. The distance between the
two railway stations is 22 km and the
journey takes 20 minutes. If the
magnitude of the acceleration is half
that of deceleration, by using the
graphical method, determine the
acceleration, in meters per second
per second, and the time, in minutes,
during which the train travels at its
maximum speed.
An Australian emu is running due north in a straight
line at a speed of 13.0 m/s and slows down to a speed
of 10.1 m/s in 2.30 s. (a) What is the magnitude and
direction of the bird's acceleration? (b) Assuming
that the acceleration remains the same, what is the
bird's velocity after an additional 2.40 s has elapsed?
(a) Number i
(b) Number
i
Units
Units
a truck travels a distance d=22.1m in the positive x direction in a time t1=17.7s, at which point the truck brakes, coming to rest in t2=9.53s. Assuming the truck started from rest and moved with a constant acceleration, what was the acceleration, in meters per squared second, during time interval t1 and what was the truck's instantaneous velocity in the horizontal direction, in meters per second, when it began braking?
Chapter 2 Solutions
College Physics (10th Edition)
Ch. 2 - A jogger runs due east along a straight jogging...Ch. 2 - Give an example or two in which the magnitude of...Ch. 2 - Under what conditions is average velocity equal to...Ch. 2 - If an automobile is traveling north, can it have...Ch. 2 - True or false? (a) If an objects average speed is...Ch. 2 - Is it possible for an object to be accelerating...Ch. 2 - A wind-up toy car is released from rest. It...Ch. 2 - Can an object with constant acceleration reverse...Ch. 2 - If the graph of the position of an object as a...Ch. 2 - If the graph of the position of an object as a...
Ch. 2 - If the graph of the velocity of an object as a...Ch. 2 - Figure 2.31 shows graphs of the positions of three...Ch. 2 - Figure 2.32 shows graphs of the velocities of...Ch. 2 - Figure 2.33 shows the graph of an objects position...Ch. 2 - Figure 2.3 shows the graph of an objects velocity...Ch. 2 - Figure 2.35 shows the position x of an object as a...Ch. 2 - Figure 2.36 shows the velocity of an object Ux as...Ch. 2 - A ball is dropped from rest from the top of a...Ch. 2 - Which of the following statements about average...Ch. 2 - A ball is thrown directly upward with a velocity...Ch. 2 - Two objects start at the same place at the same...Ch. 2 - An object starts from rest and accelerates...Ch. 2 - If a car moving at 80 mi/h takes 400 ft to stop...Ch. 2 - Figure 2.38 shows the velocity of a jogger as a...Ch. 2 - A certain airport runway of length L allows planes...Ch. 2 - A ball rolls off a horizontal shelf a height h...Ch. 2 - A frog leaps vertically into the air and...Ch. 2 - A cat runs in a straight line. Figure 2.39 shows a...Ch. 2 - A wildebeest is running in a straight line, which...Ch. 2 - A bullet is dropped into a river from a very high...Ch. 2 - An ant is crawling along a straight wire, which we...Ch. 2 - || A person is walking briskly in a straight line,...Ch. 2 - A dog runs from points A to B to C in 3.0 s. (See...Ch. 2 - || BIO Figure 2.44 shows the position of a moving...Ch. 2 - || An object moves along the x axis. Figure 2.45...Ch. 2 - || A boulder starting from rest rolls down a hill...Ch. 2 - || Each graph in Figure 2.47 shows the position of...Ch. 2 - Family trip. You and your family take a trip to...Ch. 2 - Hypersonic scramjet. On March 27, 2004, the United...Ch. 2 - Plate tectonics. The earths crust is broken up...Ch. 2 - A runner covers one lap of a circular track 40.0 m...Ch. 2 - At room temperature, sound travels at a speed of...Ch. 2 - BIO Ouch! Nerve impulses travel at different...Ch. 2 - While riding on a bus traveling down the highway,...Ch. 2 - || A mouse travels along a straight line; its...Ch. 2 - || The freeway blues! When you normally drive the...Ch. 2 - ||Two runners start simultaneously at opposite...Ch. 2 - || A physics professor leaves her house and walks...Ch. 2 - || A test car travels in a straight line along the...Ch. 2 - || Figure 2.50 shows the position x of a crawling...Ch. 2 - || The graph in Figure 2.51 shows the velocity of...Ch. 2 - || DATA A test driver at Incredible Motors, Inc.,...Ch. 2 - (a) The pilot of a jet fighter will black out at...Ch. 2 - || For each graph of velocity as a function of...Ch. 2 - || A little cat, Bella, walks along a straight...Ch. 2 - The driver of a car traveling on the highway...Ch. 2 - BIO Animal motion. Cheetahs, the fastest of the...Ch. 2 - || BIO A cat drops from a shelf 4.0 ft above the...Ch. 2 - || BIO Blackout? A jet fighter pilot wishes to...Ch. 2 - A car is traveling at 60 mi/h down a highway. (a)...Ch. 2 - BIO If a pilot accelerates at more than 4g, he...Ch. 2 - || BIO Air-bag injuries. During an auto accident,...Ch. 2 - Starting from rest, a boulder rolls down a hill...Ch. 2 - Faster than a speeding bullet! The Beretta Model...Ch. 2 - Electric drag racer. An electric drag racer is...Ch. 2 - The reaction time of the average automobile driver...Ch. 2 - According to recent typical test data, a Ford...Ch. 2 - A car sitting at a red light begins to accelerate...Ch. 2 - If the radius of a circle of area A and...Ch. 2 - In the redesign of a machine, a metal cubical part...Ch. 2 - You have two cylindrical tanks. The tank with the...Ch. 2 - Prob. 42PCh. 2 - Two rockets having the same acceleration start...Ch. 2 - The drivers of two cars having equal speeds hit...Ch. 2 - Two bicyclists start a sprint from rest, each...Ch. 2 - (a) If a flea can jump straight up to a height of...Ch. 2 - A brick is released with no initial speed from the...Ch. 2 - Worlds tallest building. Suppose that you drop a...Ch. 2 - A tennis ball on Mars, where the acceleration due...Ch. 2 - Measuring g. One way to measure g on another...Ch. 2 - Thats a lot of hot air! A hot-air balloonist,...Ch. 2 - Astronauts on the moon. Astronauts on our moon...Ch. 2 - A student throws a water balloon vertically...Ch. 2 - A rock is thrown vertically upward with a speed of...Ch. 2 - BIO Physiological effects of large acceleration....Ch. 2 - Two stones are thrown vertically upward from the...Ch. 2 - Two coconuts fall freely from rest at the same...Ch. 2 - A Toyota Prius driving north at 65 mi/h and a VW...Ch. 2 - You are driving eastbound on the interstate at 70...Ch. 2 - A helicopter 8.50 m above the ground and...Ch. 2 - || A jetliner has a cruising air speed of 600 mi/h...Ch. 2 - || At the instant the traffic light turns green,...Ch. 2 - || A state trooper is traveling down the...Ch. 2 - Two rocks are thrown directly upward with the same...Ch. 2 - BIO Prevention of hip fractures. Falls resulting...Ch. 2 - || Egg drop. You are on the roof of the physics...Ch. 2 - || Galileos marbles. Galileo used marbles rolling...Ch. 2 - A large boulder is ejected vertically upward from...Ch. 2 - A car is traveling in the negative x direction at...Ch. 2 - Bio A healthy heart pumping at a rate of 72 beats...Ch. 2 - A car in the northbound lane s sitting at a red...Ch. 2 - A rocket blasts off vertically from rest on the...Ch. 2 - BIO An elite human sorinter reaches his top speed...Ch. 2 - || How high is the cliff? Suppose you are climbing...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Suppose you start an antique car by exerting a force of 300 N on its crank for 0.250 s. What angular momentum i...
College Physics
63. A 20-cm-long, zero-resistance wire is pulled outward, on zero-resistance rails, at a steady speed of 10 m/s...
College Physics: A Strategic Approach (4th Edition)
In which extrasolar planet system(s) (A–D) would we receive light from the star with the largest Doppler shift?...
Lecture- Tutorials for Introductory Astronomy
25. FIGURE EX4.25 shows the angular-velocity-versus-time graph for a particle moving in a circle, starting from...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
The height of a certain hill (in feet) is given by , where y is the distance (in miles) north, x the distance e...
Introduction to Electrodynamics
6. (II) If 4.0 L of antifreeze solution (specific gravity = 0.80) is added to 5.0 L of water to make a 9.0-L mi...
Physics: Principles with Applications
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 runner is running around rectangular track with length = 50 meters and width = 20 meters. He travels around rectangular track twice, finally running back to starting point. If the total time he takes to run around the track is 100 seconds, determine average speed and average velocity.arrow_forwardAt an air show, a jet plane has velocity components vx= 695km/h and v y =415km/h at time 4.35 s and v x =938km/h and V y =365km/h at time 7.52s. A)For this time interval, find the xxx component of the plane's average acceleration. b)For this time interval, find the yyy component of the plane's average acceleration. C)For this time interval, find the magnitude of its average acceleration. D)For this time interval, find the direction of its average acceleration.arrow_forwardThe equation x(t) = −bt2 + ct3 gives the position of a particle traveling along the x axis at any time. In this expression, b = 6.00 m/s2, c = 4.00 m/s3, and x is in meters when t is entered in seconds. For this particle, determine the following. (Indicate the direction with the sign of your answer as applicable.) (a) displacement and distance traveled during the time interval t = 0 to t = 3 s (Enter your answers to at least two decimal places.) (b) average velocity and average speed during the time interval t = 0 to t = 3 s (Enter your answers to at least two decimal places.) (c) average acceleration during the time interval t = 0 to t = 3 sarrow_forward
- You attach a meter stick to an oak tree, such that the top of the meter stick is 2.67 meters above the ground. Later, an acorn falls from somewhere higher up in the tree. If the acorn takes 0.311 seconds to pass the length of the meter stick, how high (h0) above the ground in meters was the acorn before it fell, assuming that the acorn did not run into any branches or leaves on the way down?arrow_forwardThe displacement of a particle which moves along the x axis is given by x = (-2 + 3t)e^-0.5t, consider x to be in feet and t in seconds. Plot the displacement, velocity and acceleration for the first 20 seconds of motion and determine, both graphically and by your established equation for acceleration,the time at which acceleration is 0.arrow_forward#3arrow_forward
- The velocity of a particle moving along the x-axis varies in time according to the expression v(t) = α - βt2 where α = 52.9m/s , β = 3.72m/s3, and t is in seconds. a) Find the acceleration in the time interval from t = 0 to 2.97s in units of m/s2 b) Determine the acceleration of the particle tf = 2.97s in m/s2arrow_forwardThe velocity function, in feet per second, is given for a particle moving along a straight line, where t is the time in seconds. Find (a) the displacement and (b) the total distance that the particle travels over the given interval. v(t) = t3 − 10t2 + 27t − 18, 1 ≤ t ≤ 7arrow_forwardIf the graph of the velocity of an object as a function of time is a straight line, what can you conclude about the acceleration of the object is the slope is (a) positive, (b) negative, and (c) zero?arrow_forward
- A racing enthusiast claims that his sports car will accelerate from rest to a speed of 45.5 m/s in 8.50 s. (a) Determine the magnitude of the average acceleration of the car (in m/s2) (b) Assume that the car moves with constant acceleration. Find the distance (in m) the car travels in the first 8.50 s (c) What is the speed of the car (in m/s) 10.0 s after it begins its motion if it continues to move with the same acceleration?arrow_forwardThe graph is a particle's position along x axis versus time. What are the signs of the particle's velocity at t=0, 1, 2, and 3 s. t (s) 2 +,+,0,- -,0,+,+ -„0,+,0 7,0,+ 0,+,0,+arrow_forwardYou watch a player on the OSU football team and observe that he runs for 2.62 km. Is the displacement of the player the same as the distance traveled? If not, why not?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 Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY