Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN: 9781305116399
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 4.2CQ
Ail ice skater is executing a figure eight, consisting of two identically shaped, tangent circular paths. Throughout the first loop she increases her speed uniformly, and during the second loop she mows at a constant speed. Draw a motion diagram showing her velocity and acceleration vectors at several points along the path of motion.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
An object slides along the inside of a vertical circular track and never loses contact with the track. As it slides upward it slows down, and
as it slides downward it speeds up. It's not known whether it's moving clockwise or counterclockwise in the view shown. Match points A, B,
C, and D with possible acceleration vectors at those points. Only one of the acceleration vectors shown is possible at each point.
A
с
a
B
At time t = 0 a particle at the origin of an xyz-coordinate system has a velocity vector of Vo =i+ 12j - k. The acceleration function of the particle is a(t) = 16ti+j+ (cos 2t)k.
Find the speed of the particle at time t = 1.
Round your answer to two decimal places.
Speed =
A man runs around a circular track of 800 meters radius for 30 seconds, starting at a point directly to the right of the center and goes in a counterclockwise manner. He goes 5 meters per second for the first 15 seconds, runs 90 meters for the next 6 seconds and then 180 meters for the rest of the course. What was his average speed, his displacement from the starting point, his average velocity, and his total displacement upon return to the starting point?
Chapter 4 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 4 - Consider the following controls in an automobile...Ch. 4 - (i) As a projectile thrown at an upward angle...Ch. 4 - Rank the launch angles for the five paths in...Ch. 4 - A particle moves in a circular path of radius r...Ch. 4 - A particle moves along a path, and its speed...Ch. 4 - Figure OQ4.1 shows a bird's-eye view of a car...Ch. 4 - Entering his dorm room, a student tosses his book...Ch. 4 - A student throws a heavy red ball horizontally...Ch. 4 - A projectile is launched on the Earth with a...Ch. 4 - Does a car moving around a circular track with...
Ch. 4 - An astronaut hits a golf ball on the Moon. Which...Ch. 4 - A projectile is launched on the Earth with a...Ch. 4 - A girl, moving at 8 m/s on in-line skates, is...Ch. 4 - A sailor drops a wrench front the top of a...Ch. 4 - A baseball is thrown from the outfield toward the...Ch. 4 - Prob. 4.11OQCh. 4 - Prob. 4.12OQCh. 4 - In which of the following situations is the moving...Ch. 4 - Prob. 4.1CQCh. 4 - Ail ice skater is executing a figure eight,...Ch. 4 - If you know the position vectors of a particle at...Ch. 4 - Describe how a driver can steer a car traveling at...Ch. 4 - Prob. 4.5CQCh. 4 - Prob. 4.6CQCh. 4 - Explain whether or not the following particles...Ch. 4 - A motorist drives south at 20.0 m/s for 3.00 min,...Ch. 4 - When the Sun is directly overhead, a hawk dives...Ch. 4 - Suppose the position vector for a particle is...Ch. 4 - The coordinates of an object moving in the xy...Ch. 4 - A golf ball is hit off a tee at the edge of a...Ch. 4 - A particle initially located at the origin has an...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 - A fish swimming in a horizontal plane has velocity...Ch. 4 - Review. A snowmobile is originally at the point...Ch. 4 - Mayan kings and many school sports teams are named...Ch. 4 - An astronaut on a strange planet finds that she...Ch. 4 - In a local bar, a customer slides an empty beer...Ch. 4 - In a local bar. a customer slides an empty beer...Ch. 4 - A projectile is fired in such a way that its...Ch. 4 - To start an avalanche on a mountain slope, an...Ch. 4 - Chinook salmon are able to move through water...Ch. 4 - A rock is thrown upward from level ground in such...Ch. 4 - The speed of a projectile when it reaches its...Ch. 4 - A ball is tossed from an upper-story window of a...Ch. 4 - A firefighter, a distance d from a burning...Ch. 4 - A landscape architect is planning an artificial...Ch. 4 - A placekicker must kick a football from a point...Ch. 4 - A basketball star covers 2.80 m horizontally in a...Ch. 4 - A playground is on the flat roof of a city school,...Ch. 4 - The motion of a human body through space can be...Ch. 4 - A soccer player kicks a rock horizontally off a...Ch. 4 - A projectile is fired from the top of a cliff of...Ch. 4 - A student stands at the edge of a cliff and throws...Ch. 4 - The record distance in the sport of throwing...Ch. 4 - A boy stands on a diving board and tosses a stone...Ch. 4 - A home run is hit in such a way that the baseball...Ch. 4 - The athlete shown in Figure P4.21 rotates a...Ch. 4 - In Example 4.6, we found the centripetal...Ch. 4 - Casting molten metal is important in many...Ch. 4 - A tire 0.500 m in radius rotates at a constant...Ch. 4 - Review. The 20-g centrifuge at NASAs Ames Research...Ch. 4 - An athlete swings a ball, connected to the end of...Ch. 4 - The astronaut orbiting the Earth in Figure P4.19...Ch. 4 - Section 4.5 Tangential and Radial Acceleration...Ch. 4 - A train slows down as it rounds a sharp horizontal...Ch. 4 - A ball swings counterclockwise in a vertical...Ch. 4 - (a) Can a particle moving with instantaneous speed...Ch. 4 - The pilot of an airplane notes that the compass...Ch. 4 - An airplane maintains a speed of 630 km/h relative...Ch. 4 - A moving beltway at an airport has a speed 1 and a...Ch. 4 - A police car traveling at 95.0 km/h is traveling...Ch. 4 - A car travels due east with a speed of 50.0 km/h....Ch. 4 - A bolt drops from the ceiling of a moving train...Ch. 4 - A river has a steady speed of 0.500 m/s. A student...Ch. 4 - A river flows with a steady speed v. A student...Ch. 4 - A Coast Guard cutter detects an unidentified ship...Ch. 4 - A science student is riding on a flatcar of a...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 - A ball is thrown with an initial speed i at an...Ch. 4 - Why is the following situation impassible? A...Ch. 4 - A particle starts from the origin with velocity...Ch. 4 - The Vomit Comet. In microgravity astronaut...Ch. 4 - A basketball player is standing on the floor 10.0...Ch. 4 - Lisa in her Lamborghini accelerates at...Ch. 4 - A boy throws a stone horizontally from the top of...Ch. 4 - A flea is at point on a horizontal turntable,...Ch. 4 - Towns A and B in Figure P4.64 are 80.0 km apart. A...Ch. 4 - A catapult launches a rocket at an angle of 53.0...Ch. 4 - A cannon with a muzzle speed of 1 000 m/s is used...Ch. 4 - Why is the following situation impossible? Albert...Ch. 4 - As some molten metal splashes, one droplet flies...Ch. 4 - An astronaut on the surface of the Moon fires a...Ch. 4 - A pendulum with a cord of length r = 1.00 m swings...Ch. 4 - A hawk is flying horizontally at 10.0 m/s in a...Ch. 4 - A projectile is launched from the point (x = 0, y...Ch. 4 - A spring cannon is located at the edge of a table...Ch. 4 - An outfielder throws a baseball to his catcher in...Ch. 4 - A World War II bomber flies horizontally over...Ch. 4 - A truck loaded with cannonball watermelons stops...Ch. 4 - A car is parked on a steep incline, making an...Ch. 4 - An aging coyote cannot run fast enough to catch a...Ch. 4 - A fisherman sets out upstream on a river. His...Ch. 4 - Do not hurt yourself; do not strike your hand...Ch. 4 - A skier leaves the ramp of a ski jump with a...Ch. 4 - Two swimmers, Chris and Sarah, start together at...Ch. 4 - The water in a river flows uniformly at a constant...Ch. 4 - A person standing at the top of a hemispherical...Ch. 4 - A dive-bomber has a velocity or 280 m/s at ail...Ch. 4 - A projectile is fired up an incline (incline angle...Ch. 4 - A fireworks rocket explodes at height h, the peak...Ch. 4 - In the What If? section of Example 4.5, it was...Ch. 4 - An enemy ship is on the east side of a mountain...
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
- The car in the drawing is moving clockwise (from point 1 to point 2) around a circular section of road at a constant speed. What are the directions of its velocity and acceleration at position 2? 2 Velocity Acceleration (1) East North West North (2) (3) West South (4) East South (5) South North O (3) O (1) O (4) O (2) O15) MacBook Air So F3 FS esc F4 %23 24 3. E R tabarrow_forwardA particle travels clockwise around a circular path as shown below. The speed of the particle is given as a function of position s, such that v(s) = (s^2 ) m⁄sec where position is measured in meters. The radius of the circle is 1 m. What is the magnitude of the acceleration of the particle at the position s = 1 m?arrow_forwardA particle moves along a circular path having a radius of 1.1 m. At an instant when the speed of the particle is equal to 3.22 m/s and changing at the rate of 6.46 m/s², what is the magnitude of the total acceleration of the particle?arrow_forward
- A ball is moving along a circular track. What can be said about the orientation of the velocity and acceleration vectors if the ball is speeding up? CHOICES: Oriented at an angle less than 90 degrees Oriented at 0 degrees Oriented at an angle greater than 90 degrees Out of phase by 180 degreesarrow_forwardA particle moves in a circular path according to the clockwise equation θ(t)=π/4+3t+2t2, where θ is the angle between the particle's position vector and the x axis, oriented positively counterclockwise. θ is measured in radians and t in seconds. Which of the drawings qualitatively represents the velocity vectors v (in red) and acceleration a (in blue) of the particle at time t=0? Choose an option : A, B, C, D, E, F, G, or Harrow_forwardYou can use the formula for centripetal acceleration OR You have to calculate the average acceleration directly from the definition, a = delta v / delta t. You have to first get a_x by using the velocity's initial and final x components, do a_y from the y components, and then use the Pythagorean formula to get the magnitude of the acceleration vector.arrow_forward
- The position vector (in Cartesian Coordinates) of a particle is given by the function r(t) = ( (1/3) cos t^3 , (1/3) sin t^3 ) m where time is measured in seconds. Based on this information, answer the questions below. a) What is the radius of the circle that the particle moves along? b) What is the velocity of the particle as a function of time? c) What is the speed of the particle as a function of time? d) At time t = 2 sec, what is the acceleration of the particle in tangential and normal components?arrow_forwardAnswer all parts of the questionarrow_forwardA particle is traveling counterclockwise in a circle of radius r = 2.75m. At some instant in time, the particle is located by the angular coordinate alpha = 24o, the acceleration has a magnitude of 12 m/s2 and is directed at an angle beta = 20o with respect to the radial coordinate. Determine the velocity total acceleration. Give your answers in vector notation.arrow_forward
- Starting from the front door of your ranch house, you walk 60.0 m due east to your windmill, and then you turn around and slowly walk 35.0 m west to a bench where you sit and watch the sunrise. It takes you 30.0 s to walk from your house to the windmill and then 46.0 s to walk from the windmill to the bench. For the entire trip from your front door to the bench, what is your average speed?arrow_forwardA particle moves in a circular path at constant speed. The initial location of the particle is (5.28 m, 6.11 m) at t = 3.6 s. The velocity of the particle at this time is 3.05 m/s 3 (i.e., directed along the positive y-axis). Acceleration at this time is along the +x axis. At t=10.76 s, vis -3.05 m/s and the acceleration is directed along the +y axis. Find the radius of the circle. For this problem assume the time interval is less than one full period. T = m Find the x-coordinate of the center of the circle (in meters): center m Question Help: Read Submit Questionarrow_forwardStarting from rest, the motorboat travels around the circular path, ρ = 50 m, at a speed v=(0.2t^2)m/s, where t is in seconds. (Figure 1) A) Determine the magnitude of the boat's velocity at the instant t = 3 s. Express your answer to three significant figures and include the appropriate units. B)Determine the magnitude of the boat's acceleration at the instant t = 3 s. Express your answer to three significant figures and include the appropriate units.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
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY