College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 3, Problem 7CQ
An athlete performing the long jump tries to achieve the maximum distance from the point of takeoff to the first point of touching the ground. After the jump, rather than land upright, she extends her legs forward as in the photo. How does this affect the time in the air? How does this give the jumper a longer range?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
a catapult launches a test rocket upward from well giving it a speed of 50 m/s at ground level. the engines then fire so that the rocket accelerated at 5 m/s^2 until it reaches an altitude of 750 m at which point it gos into free fall. what is the maximum altitde of the rocket?
A person on the top of a roof of a building (100 m) drops a ball. After 2s passed, a person who stands at the base of the same building throws a separate ball in the upward direction with a speed of 20 m/s. Assumes the two balls are traveling on the same vertical path.
Will the two balls collide with each other?
If so, what are their velocities as they collide with each other?
Jonah is reading a novel that describes an athlete participating in an archery competition. The athlete is 186 cm tall and hits an amazing shot where they fire the arrow completely horizontally and it lands 51 m away from them.
1) neglecting air resistance and drag, what must the initial speed of the arrow be?
2) if the arrow was instead fired at an angle of 45°, how far would it have travelled if it was launched at 187m/s?
Chapter 3 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 3 - a. Can a vector have nonzero magnitude if a...Ch. 3 - Prob. 2CQCh. 3 - Suppose two vectors have unequal magnitudes. Can...Ch. 3 - Prob. 4CQCh. 3 - For a projectile, which of the following...Ch. 3 - A baseball player throws a ball at a 40 angle to...Ch. 3 - An athlete performing the long jump tries to...Ch. 3 - If you kick a football, at what angle to the...Ch. 3 - Prob. 9CQCh. 3 - Prob. 10CQ
Ch. 3 - If you go to a ski area, youll likely find that...Ch. 3 - In an amusement-park ride, cars rolling along at...Ch. 3 - There are competitions in which pilots fly small...Ch. 3 - Prob. 14CQCh. 3 - You are cycling around a circular track at a...Ch. 3 - An airplane has been directed to fly in a...Ch. 3 - When you go around a corner in your car, your car...Ch. 3 - A person trying to throw a ball as far as possible...Ch. 3 - Prob. 19CQCh. 3 - Prob. 20MCQCh. 3 - Prob. 21MCQCh. 3 - The gas pedal in a car is sometimes referred to as...Ch. 3 - A car travels at constant speed along the curved...Ch. 3 - Prob. 24MCQCh. 3 - Prob. 25MCQCh. 3 - Prob. 26MCQCh. 3 - Prob. 27MCQCh. 3 - A football is kicked at an angle of 30 with a...Ch. 3 - A football is kicked at an angle of 30 with a...Ch. 3 - Prob. 30MCQCh. 3 - Formula One race cars are capable of remarkable...Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - A position vector with magnitude 10 m points to...Ch. 3 - A velocity vector 40 above the positive x-axis has...Ch. 3 - A cannon tilted upward at 30 fires a cannonball...Ch. 3 - Prob. 8PCh. 3 - Draw each of the following vectors, then find its...Ch. 3 - Draw each of the following vectors, then find its...Ch. 3 - Each of the following vectors is given in terms of...Ch. 3 - Each of the following vectors is given in terms of...Ch. 3 - A wildlife researcher is tracking a flock of...Ch. 3 - Jack and Jill ran up the hill at 3.0 m/s. The...Ch. 3 - Josh is climbing up a steep 34 slope, moving at a...Ch. 3 - You begin sliding down a 15 ski slope. Ignoring...Ch. 3 - A car traveling at 30 m/s runs out of gas while...Ch. 3 - In the Soapbox Derby, young participants build...Ch. 3 - A piano has been pushed to the top of the ramp at...Ch. 3 - Prob. 20PCh. 3 - A car goes around a corner in a circular arc at...Ch. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - A ball is thrown horizontally from a 20-m-high...Ch. 3 - A ball with a horizontal speed of 1.25 m/s rolls...Ch. 3 - A pipe discharges storm water into a creek. Water...Ch. 3 - A pipe discharges storm water into a creek. Water...Ch. 3 - Prob. 31PCh. 3 - A rifle is aimed horizontally at a target 50 m...Ch. 3 - A gray kangaroo can bound across a flat stretch of...Ch. 3 - On the Apollo 14 mission to the moon, astronaut...Ch. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Racing greyhounds are capable of rounding corners...Ch. 3 - To withstand g-forces of up to 10 gs, caused by...Ch. 3 - Prob. 39PCh. 3 - In a roundabout (or traffic circle), cars go...Ch. 3 - A particle rotates in a circle with centripetal...Ch. 3 - Entrance and exit ramps for freeways are often...Ch. 3 - A peregrine falcon in a tight, circular turn can...Ch. 3 - An airplane cruises at 880 km/h relative to the...Ch. 3 - Anita is running to the right at 5 m/s, as shown...Ch. 3 - Anita is running to the right at 5 m/s, as shown...Ch. 3 - Two children who are bored while waiting for their...Ch. 3 - A boat takes 3.0 h to travel 30 km down a river,...Ch. 3 - A particle rotates in a circle with centripetal...Ch. 3 - Suppose D=AB where vector A has components Ax = 5,...Ch. 3 - Suppose E = 2A+3B where vector A has components Ax...Ch. 3 - For the three vectors shown in Figure P3.47, the...Ch. 3 - Prob. 54GPCh. 3 - Prob. 55GPCh. 3 - A pilot in a small plane encounters shifting...Ch. 3 - Prob. 57GPCh. 3 - Prob. 58GPCh. 3 - A skier gliding across the snow at 3.0 m/s...Ch. 3 - Prob. 60GPCh. 3 - A physics student on Planet Exidor throws a ball,...Ch. 3 - Prob. 62GPCh. 3 - In 1780, in what is now referred to as Bradys...Ch. 3 - The longest recorded pass in an NFL game traveled...Ch. 3 - A spring-loaded gun, fired vertically, shoots a...Ch. 3 - Small-plane pilots regularly compete in message...Ch. 3 - Prob. 67GPCh. 3 - Trained dolphins are capable of a vertical leap of...Ch. 3 - A tennis player hits a ball 2.0 m above the...Ch. 3 - The shot put is a track-and-field event in which...Ch. 3 - Water at the top of Horseshoe Falls (part of...Ch. 3 - A supply plane needs to drop a package of food to...Ch. 3 - Prob. 73GPCh. 3 - Ships A and B leave port together. For the next...Ch. 3 - A flock of ducks is trying to migrate south for...Ch. 3 - A kayaker needs to paddle north across a...Ch. 3 - A plane has an airspeed of 200 mph. The pilot...Ch. 3 - The Gulf Stream off the east coast of the United...Ch. 3 - A ball thrown horizontally at 25 m/s travels a...Ch. 3 - A sports car is advertised as capable of reaching...Ch. 3 - A Ford Mustang can accelerate from 0 to 60 mph in...Ch. 3 - The Screaming Swing is a carnival ride that isnot...Ch. 3 - On an otherwise straight stretch of road near...Ch. 3 - Prob. 84MSPPCh. 3 - Prob. 85MSPPCh. 3 - Prob. 86MSPPCh. 3 - Prob. 87MSPPCh. 3 - Prob. 88MSPP
Additional Science Textbook Solutions
Find more solutions based on key concepts
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
A physics student is standing on an initially motionless, frictionless turntable with rotational inertia 0.31 k...
Essential University Physics: Volume 1 (3rd Edition)
A bottle rocket is shot straight up in the air with a speed 30 m/s. if the air resistance is ignores, the bottl...
University Physics Volume 1
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
36.33 The light from an iron arc includes many different wavelengths. Two of these are at ? = 587.9782 nm and ?...
University Physics with Modern Physics (14th Edition)
50. A telescope is constructed from two lenses with focal lengths of 95.0 cm and 15.0 cm, the 95.0-cm lens bein...
College Physics (10th Edition)
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
- Professional golfers can drive the ball over 200 m. While air resistance is significant, its effects are nearly canceled because lift is gained from backspin on the ball, and so a reasonable description of the ball’s trajectory is obtained if air resistance is neglected. Suppose a golfer hits a ball 200 m on level ground, giving it an initial velocity at an angle of 45o. The duration of the impact of the club and ball has been measured to be 1.00 ms. a) Calculate the velocity of the ball just after it is struck b) What is the 0.0450 kg ball's change in momentum?arrow_forwardYou are playing Hot Rod toy cars with your nephew and niece. Your nephew wanted to show off how fast he could launch a Hot Rod off the dining table 1.0 m above the floor by thrusting the car forward very fast but was no match against your niece who compensated slight lack of speed by pushing the car straight forward reaching a speed of 4.5 m/s at the edge of the table top when she let go of it. What was the magnitude of the final speed when it hit the floor?arrow_forwardIn projectile motion lab, you fired a projectile out of your launcher vertically up at 5.0 m/s. Assume the projectile leaves the launcher's barrel at 1.15 m above the floor and has a tiny horizontal velocity so it could clear the launcher on its way down and hit the floor, how long will it take to strike the floor? Ignore air drag. Hint: You can set the final position to be zero.arrow_forward
- A circus cat has been trained to leap off a 12-m-high platform and land on a pillow. The cat leaps off at vo = 3.1 m/s and an angle = 22° (see figure below). (a) Where should the trainer place the pillow so that the cat lands safely? d = X Your response differs from the correct answer by more than 100%. m (b) What is the cat's velocity as she lands in the pillow? (Express your answer in vector form.) Vf= m/sarrow_forwardBilly-Joe stands on the Brooklyn Bridge kicking stones into the water below. If Billy-Joe kicks a stone with a horizontal velocity of 3.50 m/s, and it lands in the water a horizontal distance of 5.40 m from where Billy-Joe is standing, what is the height of the bridgearrow_forwardA ball is kicked from the ground with an initial speed of 10 m/s at a 50 degree angle with the horizontal. a) Calculate the magnitude of the ball’s velocity just before it hits the ground. b) Suppose a house is in the path of the ball and instead of landing on the ground, it lands on the roof (12m high). How long after the kick will the ball collide with the roof? I’ve found that: Horizontal range= 10.05 m Total flight time of ball= 1.56 s Maximum height= 3 marrow_forward
- A grasshopper leaps into the air from the edge of a vertical cliff, as shown in the figure. Use information from the figure to find the initial speed of the grasshopper. Use information from the figure to find the height of the cliff.arrow_forwardThe libero receives a serve, and as he passes to their setter, the volleyball leaves his hand at point A with a velocity of 10 m/s at an angle of 62° from the horizontal. The setter is to touch the ball overhead at point B, 1.4 meters above point A. Neglect the effects of air resistance. what is the time it takes for the ball to reach point B from point A? what is the distance ? at which the setter should position himself?arrow_forwardHobbyists build a compressed air powered cannon which is able to launch a pumpkin a horizontal distance of 2700 ft. Assuming no air resistance, and assuming the pumpkin is launched at ground level, what is the minimum initial speed of the pumpkin (just as it leaves the cannon) that is needed for it to reach this distance, in m/s? 294 X m/sarrow_forward
- A soccer ball is kicked with a velocity of 8.9 m/s at an angle of 38° above thehorizontal. The keeper is standing 3.7 m away from forward who kicked the ball. Thekeeper is only 1.3 m tall and thinks they do not need to jump to stop the ball.Calculate the maximum height of the ball and the distance it will travel in the x-direction when it reaches that maximum height. Determine if the keeper will be ableto save that shot?arrow_forwardA person standing 20.0 meters away from a wall throws a stone from the ground level at an angle of 60.0°above the horizontal with an initial speed of 25.0 m/s. The time it takes the stone to reach the wall and the height at which the stone strikes the wall are: a.) t = 1.4 s, y = 18.6 m b.) t=2.6s, y=11.5m c.) t = 1.6 s, y = 22.1 m d.) t=6.8s, y=34.2marrow_forwardYou’ll now apply the horizontal launch to a car accident example. In this scenario, a car driver named Joshua Horton says he was driving at the speed limit of 45 mph when he hit an icy patch and drove through a guard rail of the 15 m tall bridge, before landing 24 m from the base of the bridge. Tes1ng shows that driving through the guard rail lowers a car’s speed by 10 m/s. QUESTION 3: Given the distance that the car landed from the bridge, determine what speed Joshua was actually driving before leaving the bridge. Was he telling the truth or lying? Show your calcula1ons here.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 LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author: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
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Vectors and 2D Motion: Crash Course Physics #4; Author: CrashCourse;https://www.youtube.com/watch?v=w3BhzYI6zXU;License: Standard YouTube License, CC-BY