College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 3, Problem 13CQ
There are competitions in which pilots fly small planes low over the ground and drop weights, trying to hit a target. A pilot flying low and slow drops a weight; it takes 2.0 s to hit the ground, during which it travels a horizontal distance of 100 m. Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground? How far does it travel before it lands?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
a skier is gliding along at 3.1 m/s on horizontal frictionless snow . he suddenly starts down a 10 degree incline . his speed at the bottom is 16 m/s
what is the length of the incline?
how long does it take him to reach the bottom?
A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but as they walk away, it begins to roll down the ramp. If the back of the truck is 1.0 m above the ground and the ramp is inclined at 20°, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?
An attacker at the base of a castle wall 3.67 m high throws a rock straight up with speed 8.10 m/s at a height of 1.53 m above the ground. Will the rock reach the top of the wall? what is the rock's speed at the top? If not, what initial speed must the rock have to reach the top? Find the change in the speed of a rock thrown straight down from the top of the wall at an initial speed of 8.10 m/s and moving between the same two points.
Chapter 3 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 3 - a. Can a vector have nonzero magnitude if a...Ch. 3 - Is it possible to add a scalar to a vector? If so,...Ch. 3 - Suppose two vectors have unequal magnitudes. Can...Ch. 3 - Suppose C=A+B a. Under what circumstances does C =...Ch. 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 - A person trying to throw a ball as far as possible...Ch. 3 - If you kick a football, at what angle to the...Ch. 3 - A passenger on a jet airplane claims to be able to...
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 - A cyclist goes around a level, circular track at...Ch. 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 - Which combination of the vectors shown in Figure...Ch. 3 - Two vectors appear as in Figure Q3.19. Which...Ch. 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 - A ball is fired from a cannon at point 1 and...Ch. 3 - A ball thrown at an initial angle of 37.0 and...Ch. 3 - A cannon elevated at 40 is fired at a wall 300 m...Ch. 3 - A car drives horizontally off a 73-m-high cliff at...Ch. 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 - Riders on a Ferris wheel move in a circle with a...Ch. 3 - Formula One race cars are capable of remarkable...Ch. 3 - A car goes around a corner in a circular arc at...Ch. 3 - A position vector with magnitude 10 m points to...Ch. 3 - A velocity vector 40 above the positive x-axis has...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 - A cannon tilted upward at 30 fires a cannonball...Ch. 3 - a. What are the x- and y-components of vector E of...Ch. 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 - 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 - A car turns into a driveway that slopes upward at...Ch. 3 - Anita is running to the right at 5 m/s, as shown...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 - Raindrops are falling straight down at 12 m/s when...Ch. 3 - A boat takes 3.0 h to travel 30 km down a river,...Ch. 3 - Two children who are bored while waiting for their...Ch. 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 - Two spheres are both launched horizontally from a...Ch. 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 - A sprinkler mounted on the ground sends out a jet...Ch. 3 - A good quarterback can throw a football at 27 m/s...Ch. 3 - Racing greyhounds are capable of rounding corners...Ch. 3 - To withstand g-forces of up to 10 gs, caused by...Ch. 3 - The Scion iQ is a compact car that is capable of...Ch. 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 - 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. 48GPCh. 3 - A typical set of stairs is angled at 38. You climb...Ch. 3 - A pilot in a small plane encounters shifting...Ch. 3 - A small plane, 100 km due south of the equator, is...Ch. 3 - A skier gliding across the snow at 3.0 m/s...Ch. 3 - A block slides along the frictionless track shown...Ch. 3 - When the moving sidewalk at the airport is broken,...Ch. 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 physics student on Planet Exidor throws a ball,...Ch. 3 - A ball thrown horizontally at 25 m/s travels a...Ch. 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 - In a shot-put event, an athlete throws the shot...Ch. 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 - A child slides down a frictionless 3.0-m-long...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 - Riding the Water Slide A rider on a water slide...Ch. 3 - Riding the Water Slide A rider on a water slide...Ch. 3 - Riding the Water Slide A rider on a water slide...Ch. 3 - Riding the Water Slide A rider on a water slide...Ch. 3 - Riding the Water Slide A rider on a water slide...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. Which lists the Jovian planets in orde...
The Cosmic Perspective Fundamentals (2nd Edition)
34.56 A thin lens with a focal length of 6.00 cm is used as a simple magnifier. (a) What angular magnification ...
University Physics with Modern Physics (14th Edition)
A screen 1.0 m wide is 2.0 m from a pair of slits illuminated by 633-nm laser light, with the screens center on...
Essential University Physics (3rd Edition)
2. You push a child on a swing. Why doesn’t the child continue in a vertical loop over the top of the swing?
a....
College Physics
Particles of light have no mass. Does the Sun’s mass change as a result of all the light it emits? Explain.
Modern Physics
Capacitors C1, and C2 are in series, with voltage V across the combination. Show that the voltages across the i...
Essential University Physics: Volume 2 (3rd 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
- A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. How long does it take the ball to reach its maximum height? 2.3 s 4.0 s 8.0 s 2.0 s 4.6 sarrow_forwardA piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but as they walk away, it begins to roll down the ramp. If the back of the truckis 1.0 m above the ground and the ramp is inclined at 20°, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?arrow_forwardA rock was thrown horizontally from a 146 m high cliff. It strikes the ground 97 m from the base of the cliff. At what speed was it thrown? A 19.9 m/s 17.8 m/s 18.3 m/s D 16.3 m/sarrow_forward
- A stone is thrown from the top of a 59.4 m high rock. The vertical component of the initial speed of the stone is 19.5 m / s upwards. How long does the stone spend in the air? Suppose the soil at the base of the rock is flat.arrow_forwardA ball is thrown upward from the top of a tall building so that it lands on the ground at the base of the building. The ball reaches a maximum height of 105 m above the ground. The ball is in the air for a total of 5.32 s. Air resistance can be neglected. Use up as the +y-direction and down as the -y-direction. What is the initial velocity of the ball? What is the height of the building? What is the velocity of the ball, just before it hits the ground?arrow_forwardJenny and Jack throw identical balls off a tall building at the same time. The ground near the building is flat. Jenny throws her ball straight downward. Jack throws his ball downward and outward such that the angle between the initial velocity of the ball and the horizon is 30°. Jack throws the ball with a speed twice that of Jenny's ball. If air resistance is negligible, which ball hits the ground first? Jenny's ball hits first. It is impossible to know from the information given. Jack's ball hits first. They hit at the same timearrow_forward
- If a dropped object falls 19.6 m in 2.0 s, how far will it fall in 4.0s? A boy throws a stone straight upward with an initial velocity of 5 m/s from the surface of the Earth. What is the maximum height above the starting point will the stone reach before it starts falling back?arrow_forwardYou are on the roof of the physics building, 50.0m above the ground. Your physics professor, who is 1.90m tall is walking alongside the building at a constant speed of 1.20 m/s. If you wish to drop an egg on your professor’s head, where should the professor be when you release the egg? Assume that the egg is in free fall.arrow_forwardA 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up It accelerates upward at 35 m/s? for 33s, then runs out of fuel. Ignore any air resistance effects. What is the rockets altitude? How long is the rocket in the air before hitting the ground?arrow_forward
- A ball is launched from the ground at a speed of 35 m/s and an angle of 37 degrees above the horizontal. You may neglect air resistance. What is the maximum height of the ball? (in m) 67.91 m 22.64 m 45.27 m 39.86 m 62.50 m How much time passes until the ball lands? (in m) 7.143 s 4.299 s 5.705 s 3.571 sarrow_forwardA skydiver leaps out of an airplane but accidentally forgets their parachute. They fall for 6.80 s before reaching terminal velocity and fall for the rest of the way to the ground at that constant terminal velocity. The total trip from the plane to the ground takes 96.6 s. Luckily, the skydiver lands in a tree and survives. How high above the tree was the airplane when the skydiver leaped out?arrow_forwardA rock is thrown horizontally at a speed of 10.00 m/s from the top of a 50.0 m-high vertical cliff on another planet and lands 40.0 m from the base of the cliff. Air resistance is negligible on this planet. a) what is the acceleration due to gravity on this plane? b) if you wanted to double the horizontal distance covered when throwing the rock at the same initial speed, how high would the cliff need to be?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 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
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY