Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 31P
A river flows with a steady speed v. A student swims upstream a distance d and then back to the starling point. The student can swim at speed c in still water. (a) In terms of d, v, and c, what time interval is required for the round trip? (b) What time interval would be required if the water were still? (c) Which time interval is larger? Explain whether it is always larger.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Motion with gravity Neglecting air resistance, the motion of an objectmoving vertically near Earth’s surface is determined by the acceleration due to gravity, which is approximately 9.8 m/s2. Suppose a stone is thrown vertically upward at t = 0 with a velocity of 40 m/s from the edge of a cliff that is 100 m above a river.a. Find the velocity ν(t) of the object, for t ≥ 0.b. Find the position s(t) of the object, for t ≥ 0.c. Find the maximum height of the object above the river.d. With what speed does the object strike the river?
Please Solve D and E.
a) At what height above the ground does the projectile have a speed of 0.5v0?
Express your answer in terms of v and g. You may or may not use all of these quantities.
b) What is the speed of the object at the height of (1/2)hmax?
Express your answer in terms of v and g. You may or may not use all of these quantities.
Chapter 4 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 4.1 - Consider the following controls in an automobile...Ch. 4.3 - (i) As a projectile thrown at an upward angle...Ch. 4.3 - Rank the launch angles for the five paths in...Ch. 4.4 - A particle moves in a circular path of radius r...Ch. 4.5 - A particle moves along a path, and its speed...Ch. 4 - Suppose the position vector for a particle is...Ch. 4 - The coordinates of an object moving in the xy...Ch. 4 - The vector position of a particle varies in time...Ch. 4 - It is not possible to see very small objects, such...Ch. 4 - Review. A snowmobile is originally at the point...
Ch. 4 - In a local bar, a customer slides an empty beer...Ch. 4 - Mayan kings and many school sports teams are named...Ch. 4 - A projectile is fired in such a way that its...Ch. 4 - The speed of a projectile when it reaches its...Ch. 4 - Prob. 10PCh. 4 - A firefighter, a distance d from a burning...Ch. 4 - A basketball star covers 2.80 m horizontally in a...Ch. 4 - A student stands at the edge of a cliff and throws...Ch. 4 - Prob. 14PCh. 4 - A home run is hit in such a way that the baseball...Ch. 4 - Prob. 16PCh. 4 - A boy stands on a diving board and tosses a stone...Ch. 4 - In Example 4.6, we found the centripetal...Ch. 4 - The astronaut orbiting the Earth in Figure P4.19...Ch. 4 - An athlete swings a ball, connected to the end of...Ch. 4 - The athlete shown in Figure P4.21 rotates a...Ch. 4 - A tire 0.500 m in radius rotates at a constant...Ch. 4 - (a) Can a particle moving with instantaneous speed...Ch. 4 - A ball swings counterclockwise in a vertical...Ch. 4 - Prob. 25PCh. 4 - The pilot of an airplane notes that the compass...Ch. 4 - You are taking flying lessons from an experienced...Ch. 4 - A car travels due east with a speed of 50.0 km/h....Ch. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - A river flows with a steady speed v. A student...Ch. 4 - You are participating in a summer internship with...Ch. 4 - A farm truck moves due east with a constant...Ch. 4 - A ball on the end of a string is whirled around in...Ch. 4 - Prob. 35APCh. 4 - A particle starts from the origin with velocity...Ch. 4 - Lisa in her Lamborghini accelerates at...Ch. 4 - A boy throws a stone horizontally from the top of...Ch. 4 - Why is the following situation impossible? Albert...Ch. 4 - As some molten metal splashes, one droplet flies...Ch. 4 - Prob. 41APCh. 4 - A pendulum with a cord of length r = 1.00 m swings...Ch. 4 - A spring cannon is located at the edge of a table...Ch. 4 - A projectile is launched from the point (x = 0, y...Ch. 4 - A fisherman sets out upstream on a river. His...Ch. 4 - An outfielder throws a baseball to his catcher in...Ch. 4 - Prob. 47APCh. 4 - You are on the Pirates of the Caribbean attraction...Ch. 4 - A skier leaves the ramp of a ski jump with a...Ch. 4 - A projectile is fired up an incline (incline angle...Ch. 4 - Two swimmers, Chris and Sarah, start together at...Ch. 4 - In the What If? section of Example 4.5, it was...Ch. 4 - A fireworks rocket explodes at height h, the peak...
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
- An airplane maintains a speed of 630 km/h relative to the air it is flying through as it makes a trip to a city 750 km away to the north. (a) What time interval is required for the trip if the plane flies through a head-wind blowing at 35.0 km/h toward the south? (b) What time interval is required if there is a tailwind with the same speed? (c) What time interval is required if there is a crosswind blowing at 35.0 km/h to the east relative to the ground?arrow_forwardAn object’s position as a function of time is x(t) = 9 m + 1.5 m/s t– 3 m/s^2 t^2a. Calculate the object’s position, velocity, and acceleration at t = 6.2 s. At this point in time, is the object to the left or to the right of the origin? is it moving towards the left or towards the right? is the object speeding up or slowing down?b. What is the maximum positive displacement reached?arrow_forwardA ball is moving towards you at a velocity of 15 m/s [E]. You kick it, and the ball leaves foot with a velocity of 13 m/s [W]. The ball was in contact with the your foot for 0.4 s. What was the magnitude of the acceleration of the puck, in m/s²? Use a kinematic approach.arrow_forward
- need help on c-garrow_forwardAnswer A onlyarrow_forwardConsider a particle moving along the x-axis with acceleration a(t) = 2t and an initial velocity, v(0) = -2. a. Find the displacement of the particle from t = 0 to t = 4. (2 points) The displacement of the particle is units. Round your answer to the nearest thousandth if necessary. b. Find the total distance traveled by the particle from t = 0 to t = 4. The total distance traveled by the particle is units. Round your answer to the nearest thousandth if necessary.arrow_forward
- Wouldnt part B just be the derivative of the equation? My answer comes out wrong when I submit it? Not sure how to do part c?arrow_forwardpart e is what im most confused about finding (e)What is the average velocity between t = 1.0 s and t = 2.0 s (in m/s)? (Express your answer in vector form.)arrow_forwardAnswer subparts a and b.arrow_forward
- A/1) In projectiles, why does a particle reach a velocity of zero? And at what height? Prove it mathematically. Assume that we have an ideal conditions of motion. Take the initial velocity of launching to be v at angle θ from the ground as shown in figure. A/2) One day, you were driving a car at a speed of 73.2 km/h and your eyes closed suddenly for a 0.4 sec. How far does the car move during that time in minutes? Note: Please answer sections A and Barrow_forwardan object is moving west at 30 KM/H and another object is moving north at 30 KM/H. pick one of the 4 choices belowarrow_forwardNeed help with this problem plsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher: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