EP PHYSICS -MOD.MASTERING (18W)
5th Edition
ISBN: 9780136782490
Author: Walker
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 59PCE
A boat is cruising in a straight line at a constant speed of 2.6 m/s when it is shifted into neutral. After coasting 12 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.6 m/s. Assuming constant acceleration while coasting, (a) how much time did it take for the boat to coast the 12 m? (b) What was the boat s acceleration while it was coasting? (c) What was the speed of the boat when it had coasted for 6.0 m? Explain.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A boat is cruising in a straight line at a constant speed of 2.6 m/s when it is shifted into neutral. After coasting 12 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.6 m/s. Assuming constant acceleration while coasting, (a) how much time did it take for the boat to coast the 12 m? (b) What was the boat’s acceleration while it was coasting? (c) What was the speed of the boat when it had coasted for 6.0 m? Explain.
A boat is cruising in a straight line at a constant speed of 2.6 m/s when it is shifted into neutral. After coasting 12 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.6 m/s. Assuming constant acceleration while coasting, how much time did it take for the boat to coast the 12 m?
The particle is moving along a straight path such that its velocity at any time t is given by v = 24t-6t^2 where v is in m/s.
(a) what is the average velocity from t= 1 s to = 3 s?
(b) what is the acceleration at t = 3s?
(c) what is the average acceleration from t = 1s to t = 3 sec?
(d) when does the particle change its direction of motion?
(e) what is the distance covered from t= 1s to t= 5s
Chapter 2 Solutions
EP PHYSICS -MOD.MASTERING (18W)
Ch. 2.1 - For each of the following questions, give an...Ch. 2.2 - The position of an object as a function of time is...Ch. 2.3 - Figure 2-10 shows the position-versus-time graph...Ch. 2.4 - At a certain time, object 1 has an initial...Ch. 2.5 - The equation of motion for an object moving with...Ch. 2.6 - A submerged alligator swims directly toward two...Ch. 2.7 - On a distant, airless planet, an astronaut drops a...Ch. 2 - You take your dog on a walk to a nearby park. On...Ch. 2 - Does an odometer in a car measure distance or...Ch. 2 - An astronaut orbits Earth in the space shuttle. In...
Ch. 2 - After a tennis match the players dash to the net...Ch. 2 - Does a speedometer measure speed or velocity?...Ch. 2 - Is it possible for a car to circle a racetrack...Ch. 2 - For what kinds of motion are the instantaneous and...Ch. 2 - Assume that the brakes in your car create a...Ch. 2 - The velocity of an object is zero at a given...Ch. 2 - If the velocity of an object is nonzero, can its...Ch. 2 - Is it possible for an object to have zero average...Ch. 2 - A batter hits a pop fly straight up. (a) Is the...Ch. 2 - A person on a trampoline bounces straight upward...Ch. 2 - A volcano shoots a lava bomb straight upward. Does...Ch. 2 - Referring to Figure 2-27, you walk from your home...Ch. 2 - In Figure 2-27, you walk from the park to your...Ch. 2 - The two tennis players shown in Figure 2-28 walk...Ch. 2 - The golfer in Figure 2-29 sinks the ball in two...Ch. 2 - A jogger runs on the track shown in Figure 2-30....Ch. 2 - Predict/Calculate A child rides a pony on a...Ch. 2 - Predict/Explain You drive your car in a straight...Ch. 2 - Predict/Explain You drive your car in a straight...Ch. 2 - Usain Bolt of Jamaica set a world record in 2009...Ch. 2 - BIO Kangaroos have been clocked at speeds of 65...Ch. 2 - Rubber Ducks A severe storm on January 10, 1992,...Ch. 2 - Radio waves travel at the speed of light,...Ch. 2 - It was a dark and stormy night, when suddenly you...Ch. 2 - BIO Nerve Impulses The human nervous system can...Ch. 2 - A finch rides on the back of a Galapagos tortoise,...Ch. 2 - You jog at 9.1 km/h for 5.0 km, then you jump into...Ch. 2 - A dog runs back and forth between its two owners,...Ch. 2 - BIO Predict/Calculate Blood flows through a major...Ch. 2 - BIO Predict/Calculate Blood flows through a major...Ch. 2 - In heavy rush-hour traffic you drive in a straight...Ch. 2 - Predict/Calculate An expectant father paces back...Ch. 2 - The position of a particle as a function of time...Ch. 2 - The position of a particle as a function of time...Ch. 2 - Predict/Calculate A tennis player moves back and...Ch. 2 - On your wedding day you leave for the church 30.0...Ch. 2 - The position-versus-time plot of a boat...Ch. 2 - The position of a particle as a function of time...Ch. 2 - The position of a particle as a function of time...Ch. 2 - Predict/Explain On two occasions you accelerate...Ch. 2 - A 747 airliner reaches its takeoff speed of156...Ch. 2 - At the starting gun, a runner accelerates at1.9...Ch. 2 - A jet makes a landing traveling due east with a...Ch. 2 - A car is traveling due north at 23.6 m/s. Find the...Ch. 2 - A motorcycle moves according to the...Ch. 2 - A person on horseback moves according to the...Ch. 2 - Running with an initial velocity of +9.2 m/s, a...Ch. 2 - Predict/Calculate Assume that the brakes in your...Ch. 2 - As a train accelerates away from a station, it...Ch. 2 - A particle has an acceleration of +6.24 m/s2 for...Ch. 2 - Landing with a speed of 71.4 m/s, and traveling...Ch. 2 - When you see a traffic light turn red, you apply...Ch. 2 - A ball is released at the point x = 2 m on an...Ch. 2 - Starting from rest, a boat increases its speed to...Ch. 2 - The position of a car as a function of time is...Ch. 2 - The position of a ball as a function of time is...Ch. 2 - BIO A cheetah can accelerate from rest to 25 0 m/s...Ch. 2 - A sled slides from rest down an icy slope....Ch. 2 - A child slides down a hill on a toboggan with an...Ch. 2 - The Detonator On a ride called the Detonator at...Ch. 2 - Jules Verne In his novel From the Earth to the...Ch. 2 - BIO Bacterial Motion Approximately 0.1% of the...Ch. 2 - Two cars drive on a straight highway. At time t =...Ch. 2 - A Meteorite Strikes On October 9, 1992, a 27-pound...Ch. 2 - A rocket blasts off and moves straight upward from...Ch. 2 - Predict/Calculate You are driving through town at...Ch. 2 - Predict/Calculate You are driving through town at...Ch. 2 - BIO Predict/Calculate A Tongues Acceleration When...Ch. 2 - BIO Surviving a Large Deceleration On July 13,...Ch. 2 - A boat is cruising in a straight line at a...Ch. 2 - A model rocket rises with constant acceleration to...Ch. 2 - The infamous chicken is dashing toward home plate...Ch. 2 - A bicyclist is finishing his repair of a flat tire...Ch. 2 - A car in stop-and-go traffic starts at rest, moves...Ch. 2 - A car and a truck are heading directly toward one...Ch. 2 - Suppose you use videos to analyze the motion of...Ch. 2 - At the edge of a roof you throw ball 1 upward with...Ch. 2 - A cliff diver drops from rest to the water below....Ch. 2 - For a flourish at the end of her act, a juggler...Ch. 2 - Soaring Shaun During the 2014 Olympic games,...Ch. 2 - BIO Gulls are often observed dropping clams and...Ch. 2 - A volcano launches a lava bomb straight upward...Ch. 2 - An Extraterrestrial Volcano The first active...Ch. 2 - BIO Measure Your Reaction Time Heres something you...Ch. 2 - Predict/Explain A carpenter on the roof of a...Ch. 2 - Predict/Explain Figure 2-40 shows a v-versus-t...Ch. 2 - A ball is thrown straight upward with an initial...Ch. 2 - On a hot summer day in the state of Washington...Ch. 2 - Highest Water Fountain The USAs highest fountain...Ch. 2 - Wrongly called for a foul, an angry basketball...Ch. 2 - To celebrate a victory, a pitcher throws her glove...Ch. 2 - Predict/Calculate Standing at the edge of a cliff...Ch. 2 - You shoot an arrow into the air. Two seconds later...Ch. 2 - While riding on an elevator descending with a...Ch. 2 - A hot-air balloon is descending at a rate of 2.3...Ch. 2 - A model rocket blasts off and moves upward with an...Ch. 2 - BIO The southern flying squirrel (Glaucomys...Ch. 2 - Hitting the High Striker A young woman at a...Ch. 2 - While sitting on a tree branch 10.0 m above the...Ch. 2 - An astronaut on the Moon drops a rock straight...Ch. 2 - Taipei 101 An elevator in the Taipei 101...Ch. 2 - A Supersonic Waterfall Geologists have learned of...Ch. 2 - A juggler throws a ball straight up into the air....Ch. 2 - CE At the edge of a roof you drop ball A from...Ch. 2 - CE Two balls start their motion at the same time,...Ch. 2 - CE Refer to the position-versus-time plot in...Ch. 2 - Drop Tower NASA operates a 2.2-second drop tower...Ch. 2 - The velocity-versus-time graph for an object...Ch. 2 - At the 13th green of the U.S. Open you need to...Ch. 2 - A glaucous-winged gull, ascending straight upward...Ch. 2 - A doctor, preparing to give a patient an...Ch. 2 - A hot-air balloon has just lifted off and is...Ch. 2 - Astronauts on a distant planet throw a rock...Ch. 2 - BIO A Jet-Propelled Squid Squids can move through...Ch. 2 - A ball, dropped from rest, covers three-quarters...Ch. 2 - You drop a ski glove from a height h onto fresh...Ch. 2 - To find the height of an overhead power line, you...Ch. 2 - Sitting in a second-story apartment, a physicist...Ch. 2 - Bam!Apollo 15 Lands on the Moon The first word...Ch. 2 - Bam!Apollo 15 Lands on the Moon The first word...Ch. 2 - Bam!Apollo 15 Lands on the Moon The first word...Ch. 2 - Bam!Apollo 15 Lands on the Moon The first word...Ch. 2 - Referring to Example 2-17 Suppose the speeder (red...Ch. 2 - Referring to Example 2-17 The speeder passes the...Ch. 2 - Predict/Calculate Referring to Example 2-21 (a) In...Ch. 2 - Referring to Example 2-21 Suppose the balloon is...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. When we see Saturn going through a per...
The Cosmic Perspective Fundamentals (2nd Edition)
An impression is a type of fossil that is made by an organism that is buried quickly before it can decompose. I...
Conceptual Integrated Science
A ships anchor weighs 5.0kN. Its cable passes over a roller of negligible mass and is wound around a hollow cyl...
Essential University Physics (3rd Edition)
For each statement (a-d) provided below, circle the word choice that correctly describes how the two forms of l...
Lecture- Tutorials for Introductory Astronomy
Integrated Concepts A 76.0-kg person suffering from hypothermia comes indoors and shivers vigorously. How long ...
College Physics
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
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
- Asaparrow_forwardA train, traveling at a constant speed of 22.0 m/s, comes to an incline with a constant slope. While going up the incline, the train slows down with a constant acceleration of magnitude 1.40 m/s2. (A) What is the speed of the train after 7.20 s on the incline? (B) How far has the train traveled up the incline after 7.20 s?arrow_forwardA crate slides across a frictionless horizontal surface with constant acceleration 4.15 m/s2 and over a time interval reaches a final velocity of 10.0 m/s. (a) If its initial velocity is 5.00 m/s, what is its displacement (in m) during the time interval? (Indicate the direction with the sign of your answer.) m (b) What is the distance it travels (in m) during this interval? (c) If its initial velocity is –5.00 m/s, what is its displacement (in m) during the time interval? (Indicate the direction with the sign of your answer.) (d) What is the total distance it travels (in m) during the interval in part (c)?arrow_forward
- A crate slides across a frictionless horizontal surface with constant acceleration 4.10 m/s2 and over a time interval reaches a final velocity of 12.2 m/s.If its initial velocity is 6.10 m/s, what is its displacement (in m) during the time interval? (Indicate the direction with the sign of your answer.)(B) What is the distance it travels (in m) during this interval? (C) If its initial velocity is −6.10 m/s, what is its displacement (in m) during the time interval? (Indicate the direction with the sign of your answer.) (D)What is the total distance it travels (in m) during the interval in part (c)?arrow_forwardwill it travel in (a) 2.0 s and (b) 4.0 s? If this object had an initial velocity of 4 m/s, how far will it travel in (c) 2.0 s and (d) 4.0 s? 3. (a) An object moving with constant acceleration changes its speed from 20 m/s to 60 m/s in 2.0 s. What is the acceleration? (b) How far did it move in this time? 4. An object moving with constant acceleration along a horizontal path covers the distance between two points 60 m apart in 6.0 s. Its speed as it passes the second point is 15 m/s. Find (a) the speed at the first point, (b) its acceleration and (c) the distance from the point where the object was at rest to the first point.arrow_forwardA rock is thrown straight up with an initial speed of 24.0 m/s. Neglect air resistance. (a) At t = 1.0 s, what are the directions of the velocity and acceleration of the rock? Is the speed of the rock increasing or decreasing? (b) At t = 3.0 s, what are the directions of the velocity and acceleration of the rock? Is the speed of the rock increasing or decreasing?arrow_forward
- A derrick boat approaches a two-mile marker 100 m ahead at a velocity of 35.0 m/s. The pilot reduces the throttle, slowing the boat with a constant acceleration of -3.10 m/s. (a) How long (in s) does it take the boat to reach the marker? (b) What is the velocity (in m/s) of the boat when it reaches the marker? (Indicate the direction with the sign of your answer.)arrow_forwardA car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 30.0 mi/h. (a) What is the constant speed with which the car moved during the second distance d ? (b) What If? Suppose the second distance d were traveled in the opposite direction; you forgot something and had to return home at the same constant speed as found in part (a). What is the average velocity for this trip? (c) What is the average speed for this new trip?arrow_forwardA motorboat starting from rest travels in a straight line on a lake.(a) If the boat achieves a speed of 8.0 m/s in 10 s, what is the boat’s average acceleration? (b) Then, in 5.0 more seconds, the boat’s speed is 12 m/s. What is the boat’s average acceleration for the total time?arrow_forward
- A car is approaching a hill at 25.0 m/s when its engine suddenly fails, just at the bottom of the hill. The car moves with a constant acceleration of -3.00 m/s2 while coasting up the hill. (a) Write equations for the position along the slope and for the velocity as functions of time, taking x = 0 at the bottom of the hill, where vi = 25.0 m/s. (Use the following as necessary: t.) b)Determine the maximum distance the car travels up the hill.arrow_forwardWhen startled, an armadillo will leap upward. Suppose it rises 0.544 m in the first 0.200 s. (a) What is its initial speed as it leaves the ground? (b) What is its speed at the height of 0.544 m? (c) How much higher does it go?arrow_forwardA train is initially traveling at 127m/s forward with a constant acceleration of −11.2m/s2.(a) How long does it take the train to stop?(b) What is the train’s displacement after 32s?(c) What is the train’s velocity at this time?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
Relative Velocity - Basic Introduction; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=_39hCnqbNXM;License: Standard YouTube License, CC-BY