Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 15CQ
FIGURE Q4.15 shows a pendulum at one end point of its arc.
a. At this point, is w positive, negative, or zero? Explain.
b. At this point. is a positive. negative, or zero? Explain.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
7.A Jogger runs along a circular track of radius R = 100.0 m. She starts at A and jogs
three-fourths of the circular track, un to B She then turns back and jogs one-half of
the circular track, up to C. (Note that the dashed line is only a guide for the eye -
showing that B, the center of the circle, and C are collinear).
A. What is the distance she traveled?
B. Draw her displacement vector.
C. What is the magnitude of her displacement?
C
R.
A
3.
B
66
2. A girl jogs around a horizontal circle with a constant speed.
She travels one half of a revolution, a distance of 20.0 m along the
circumference of the circle, in 8.00 s.
a. What is the radius of the circle in meters?
b.
What is the period?
c. What is her speed?
d.
What is her radial acceleration is?
k as done
1. A cannon that is set on a ridge, it fired a cannon ball horizontally with a speed of 340
m/s, the ball landed on the ground at a distance of 3000 m from the cannon.
a. Calculate the time taken by the ball to reach its final position.
b. Calculate the total vertical displacement to the cannon ball.
c. Deduce the height of the ridge.
hts
Class comments
vate comment.
2. A bullet was shot by a gun with an initial speed of 260 m/s and is fired at an angle of
30° to the ground.
a. How much is the value V, at the top of the bullet's trajectory?
b. Calculate the time taken by the bullet to reach its maximum altitude.
c. Deduce the total time taken by the bullet in the air.
d. Calculate the range of the bullet.
Chapter 4 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Ch. 4 - a. At this instant, is the particle in FIGURE Q4.1...Ch. 4 - a. At this instant, is the particle in FIGURE Q4.2...Ch. 4 - Tarzan swings through the jungle by hanging from a...Ch. 4 - A projectile is launched at an angle of 30°. a. Is...Ch. 4 - For a projectile, which of the following...Ch. 4 - A cart that is rolling at constant velocity on a...Ch. 4 - A rock is thrown from a bridge at an angle 30°...Ch. 4 - Anita is running to the right at 5 m/s in FIGURE...Ch. 4 - An electromagnet on the ceiling of an airplane...Ch. 4 - Zack is driving past his house in FIGURE Q4.1O. He...
Ch. 4 - II. In FIGURE Q4.11. Yvette and Zack are driving...Ch. 4 - In uniform circular motion, which of the following...Ch. 4 - FIGURE Q4.13 shows three points on a steadily...Ch. 4 - FIGURE Q4.14 shows four rotating wheels. For each,...Ch. 4 - FIGURE Q4.15 shows a pendulum at one end point of...Ch. 4 - Problems I and 2 show a partial motion diagram....Ch. 4 - Prob. 2EAPCh. 4 - Answer Problems 3 through 5 by choosing one of the...Ch. 4 - Answer Problems 3 through 5 by choosing one of the...Ch. 4 - Answer Problems 3 through 5 by choosing one of the...Ch. 4 - A rocket-powered hockey puck moves on a horizontal...Ch. 4 - A rocket-powered hockey puck moves on a horizontal...Ch. 4 - Prob. 8EAPCh. 4 - A particle moving in the xy- plane has velocity v...Ch. 4 - You have a remote-controlled car that has been...Ch. 4 - A ball thrown horizontally at 25 m/s travels a...Ch. 4 - A physics student on the Planet Exidor throws a...Ch. 4 - A supply plane needs to drop a package of food to...Ch. 4 - A rifle is aimed horizontally at a target 50 m...Ch. 4 - In the Olympic shotput event, an athlete throws...Ch. 4 - On the Apollo 14 mission to the moon, astronaut...Ch. 4 - A baseball player friend of yours wants to...Ch. 4 - A boat takes 3.0 hours to travel 30 km down a...Ch. 4 - When the moving sidewalk at the airport is broken,...Ch. 4 - Prob. 20EAPCh. 4 - A kayaker, needs to paddle north across a...Ch. 4 - Susan, driving north at 60 mph, and Trent, driving...Ch. 4 - FIGURE EX4.23 shows the...Ch. 4 - FIGURE EX4.24 shows the...Ch. 4 - FIGURE EX4.25 shows the...Ch. 4 - The earth’s radius is about 4000 miles. Kampala,...Ch. 4 - An old-fashioned single-play vinyl record rotates...Ch. 4 - As the earth mates, what is the speed of (a) a...Ch. 4 - How fast must a plane fly along the earth’s...Ch. 4 - A 3000-rn-high mountain is located on the equator....Ch. 4 - Peregrine falcons are known for their maneuvering...Ch. 4 - To withstand “g-forces” of up to 10 g’s, caused by...Ch. 4 - The radius of the earth’s very nearly circular...Ch. 4 - A speck of dust on a spinning DVD has a...Ch. 4 - Your roommate is working on his bicycle and has...Ch. 4 - I FIGURE EX4.36 shows the angular velocity graph...Ch. 4 - I FIGURE EX4.37 shows the angular acceleration...Ch. 4 - FIGURE EX4.38 shows the...Ch. 4 - A wheel initially rotating at 60 rpm experiences...Ch. 4 - A 5.0-rn-diameter merry-go-round is initially...Ch. 4 - An electric fan goes from rest to 1800 rpm in 4.0...Ch. 4 - A bicycle wheel is rotating at 50 rpm when the...Ch. 4 - Starting from rest, a DVD steadily accelerates to...Ch. 4 - A spaceship maneuvering near Planet Zeta is...Ch. 4 - equation reference goes here45. A particle moving...Ch. 4 - A projectile’s horizontal range over level ground...Ch. 4 - a. A projectile is launched with speed v0and angle...Ch. 4 - A projectile is launched from ground level at...Ch. 4 - A gray kangaroo can bound across level ground with...Ch. 4 - A ball is thrown toward a cliff of height h with a...Ch. 4 - A tennis player hits a ball 2.0 m above the...Ch. 4 - You are target shooting using a toy gun that fires...Ch. 4 - A 35 g steel ball is held by a ceiling-mounted...Ch. 4 - You are watching an archery tournament when you...Ch. 4 - You’re 6.0 m from one wall of the house seen in...Ch. 4 - Sand moves without slipping at 6.0 m/s down a...Ch. 4 - A stunt man drives a car at a speed of 20 m/s off...Ch. 4 - A javelin thrower standing at rest holds the...Ch. 4 - A rubber ball is dropped onto a ramp that is...Ch. 4 - You are asked to consult for the city’s research...Ch. 4 - Ships A and B leave port together. For the next...Ch. 4 - While driving north at 25 m/s during a rainstorm...Ch. 4 - You’ve been assigned the task of using a shaft...Ch. 4 - Prob. 64EAPCh. 4 - Prob. 65EAPCh. 4 - Astronauts use a centrifuge to simulate the...Ch. 4 - Communications satellites are placed in a circular...Ch. 4 - Prob. 68EAPCh. 4 - A high-speed drill rotating ccw at 2400 rpm comes...Ch. 4 - A turbine is spinning at 3800 rpm. Frication in...Ch. 4 - Prob. 71EAPCh. 4 - The angular velocity of a process control motor is...Ch. 4 - A Ferris wheel of radius R speeds up with angular...Ch. 4 - Prob. 74EAPCh. 4 - A painted tooth on a spinning gear has angular...Ch. 4 - A car starts from rest on a curve with radius of...Ch. 4 - Prob. 77EAPCh. 4 - In Problem 78 through 80 you are given the...Ch. 4 - Prob. 79EAPCh. 4 - In Problem 78 through 80 you are given the...Ch. 4 - In one contest at the country fair, seen in FIGURE...Ch. 4 - Prob. 82EAPCh. 4 - Prob. 83EAPCh. 4 - Prob. 84EAPCh. 4 - Prob. 85EAP
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
- Two planets in circular orbits around a star have speed of v and 2v . (a) What is the ratio of the orbital radii of the planets? (b) What is the ratio of their periods?arrow_forwardA car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in Figure P7.15. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s. (a) Determine the cars speed. (b) What is the magnitude and direction of the acceleration when the car is at point B? Figure P7.15arrow_forwardA small rocket with a booster blasts off and heads straight upwards. When at a height of 4km and a velocity of 250.0 m/s, it releases its booster. a. What is the maximum height the booster attains?b. What is the velocity of the booster at a height of 6.0 km? Neglect air resistancearrow_forward
- A kangaroo can jump over an object 2.7 m high. a. Calculate its vertical speed when it leaves the ground, in meters per second. b. How many seconds is it in the air?arrow_forward3. A tennis ball is hit into the air and moves along an arc. Neglecting air resistance, a. for horizontal motion, where along the arc is the speed maximum? How about minimum speed, where? Justify your answer. b. For vertical motion, where along the arc is the velocity maximum? How about minimum velocity, where? Justify your answer.arrow_forwardProblem #1. Marty and Doc Brown are traveling at 10 m/s in a DeLorean and are trying to catch a train that is traveling at a constant 39 m/s. At to, the train is ahead of DeLorean by d kilometers. After 5 seconds, Marty hits the accelerator. A. What is the minimum acceleration that the DeLorean must have to catch the train? B. What is the speed of the DeLorean relative to the train when it catches up?arrow_forward
- A roller coaster car rolls down a frictionless track, reaching speed ν at the bottom.a. If you want the car to go twice as fast at the bottom, by what factor must you increase the height of the track?b. Does your answer to part a depend on whether the track is straight or not? Explain.arrow_forwardFour toy racecars are racing along a circular race track. The cars start at the 3-o'clock position and travel CCW along the track. t = 0.09 Car D is constantly 5 feet from the center of the race track and travels at a constant speed. The angle Car D sweeps out increases at a constant rate of a radian per second. a. How many radians 8 does car D sweep out in t seconds? Preview b. Define a function j that determines Car B's distance to the right of the center of the race track (in feet) as a function of the number of seconds t since the start of the race. j(t) Preview c. Car D must sweep out 27 radians to complete one full lap, and we know it sweeps out a radian per second. How many seconds will it take Car D to complete one full lap? | seconds Preview d. Sketch the graph of the function j below. j(t) 4 4 6 -2 -3 -4 Clear All Draw: M M e. What is the amplitude of f? Preview inarrow_forwardanswer question 3.a.i quickly base on given figure .. thank youarrow_forward
- An object is released from rest at a height of h. During the final second of its fall, it traverses a distance of 38m. Determine h. I would like to know the solution but also maybe an explanation on how I would know what process to take. For the last second, I was able to find that final vf = 38m/s. That is vf = deltax/deltat, or 38m/1s. I plugged it in to vf2 = vo2 + 2a(deltax), since I think that vf shouldn't change for h, but I got the wrong answer. Please explain.arrow_forwardQ1. Under what conditions can we have VA = -HoJ? Prove the identity.arrow_forwardA particle moves in the xy plane in a circle centered on the origin. At a certain instant, the velocity and acceleration of the particle are 4.0 i m/s and (-3.0i + 2.0 j) m/s². What are the x and y coordinates of the particle at this moment? .A. x = -5.3 m, y = 0 x = +5.3 m, y = 0 C. x = 0 m, y = +8 m O D. x = 0 m, y = -8marrow_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
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
What Is Circular Motion? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=1cL6pHmbQ2c;License: Standard YouTube License, CC-BY