Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 10PCE
Predict/Explain Two divers run horizontally off the edge of a low cliff. Diver 2 runs with twice the speed of diver 1. (a) When the divers hit the water, is the horizontal distance covered by diver 2 twice as much as, tour times as much as, or equal to the horizontal distance covered by diver 1? (b) Choose the best explanation from among the following:
- I. The drop time is the same for both divers.
- II. Drop distance depends on t2.
- III. All divers in free fall cover the same distance.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You throw a ball up at some angle above the horizontal so that its velocity is (v0x, v0y). You then run 22.0 m forward on level ground and catch the ball 2.90 s later at the same altitude it was released from.
a) How high above the release point did the ball reach?
b) What was the horizontal component of the ball’s initial velocity, v0x?
c) What was the vertical component of the ball’s initial velocity, v0y?
A golfer is attempting to reach the elevated green by hitting his ball under a low-hanging branch in one tree A, but over the top of a
second tree B. If the launch speed of the golf ball is vo= 106 mi/hr, what launch angle will put the first impact point of the ball closest
to the pin? How far from the pin (distance d) is this impact point?
VO
0-
12
yd
Part 2
X Incorrect
VO
A
12
yd
20'
Hint
A
72 yd
20'
Check to see if the golf ball clears the tree at A. Calculate the height h above the ground when the ball passes the tree at A.
72 yd
Answer: h= i 58.3
eTextbook and Media
B
58'
B
58'
$30¹
ft
55 yd
30'
55 yd
'10 '10
yd yd
Use the equation for horizontal motion to fine the time t.
Then use the vertical equation to find the height.
'10 '10
yd yd
Assistance Used
Assistance Used
a guy is throwing pumpkins off a five story (15 meters high) building and wants the messiest result possible (highest velocity impact).
a) he first throws a pumpkin downward at 45 degrees below the horizon at 15 m/s. how fast does the pumpkin hit the ground? at what angle does it hit?
b) he then throws a second pumpkin upward with the same velocity 45 degrees above the horizon. how fast does the second pumpkin hit the ground?
c) which strategy (throwing the pumpkin up or down) results in a higher velocity impact?
think about why this might be
Chapter 4 Solutions
Physics (5th Edition)
Ch. 4.1 - The equations of motion of an object are x = (1...Ch. 4.2 - A sailor drops a pair of binoculars from the crows...Ch. 4.3 - Two objects, A and B, are launched horizontally,...Ch. 4.4 - A projectile is launched and lands at the same...Ch. 4.5 - A baseball player throws a ball to another player...Ch. 4 - What is the acceleration of a projectile when it...Ch. 4 - A projectile is launched with an initial speed of...Ch. 4 - A projectile is launched from level ground. When...Ch. 4 - In a game of baseball a player hits a high fly...Ch. 4 - A projectile is launched with an initial velocity...
Ch. 4 - A projectile is launched from a level surface with...Ch. 4 - Do projectiles for which air resistance is...Ch. 4 - Two projectiles are launched from the same point...Ch. 4 - A child rides on a pony walking with constant...Ch. 4 - Driving down the highway, you find yourself behind...Ch. 4 - A projectile is launched from the origin of a...Ch. 4 - Predict/Explain As you walk briskly down the...Ch. 4 - A sailboat runs before the wind with a constant...Ch. 4 - As you walk to class with a constant speed of 1.75...Ch. 4 - Starting from rest, a car accelerates at 2.0 m/s2...Ch. 4 - Predict/Calculate A particle passes through the...Ch. 4 - A skateboarder travels on a horizontal surface...Ch. 4 - A hot-air balloon is drifting in level flight due...Ch. 4 - An electron in a cathode-ray tube is traveling...Ch. 4 - Two canoeists start paddling at the same time and...Ch. 4 - Predict/Explain Two divers run horizontally off...Ch. 4 - Predict/Explain Two youngsters dive off an...Ch. 4 - An archer shoots an arrow horizontally at a target...Ch. 4 - Victoria Falls The great, gray-green, greasy...Ch. 4 - A diver runs horizontally off the end of a diving...Ch. 4 - An astronaut on the planet Zircon tosses a rock...Ch. 4 - Predict/Calculate Pitchers Mounds Pitchers mounds...Ch. 4 - Playing shortstop, you pick up a ground ball and...Ch. 4 - Predict/Calculate A crow is flying horizontally...Ch. 4 - A mountain climber jumps a 2.8-m-wide crevasse by...Ch. 4 - Predict/Calculate A white-crowned sparrow flying...Ch. 4 - Pumpkin Toss In Denver, children bring their old...Ch. 4 - Fairgoers ride a Ferris wheel with a radius of...Ch. 4 - Predict/Calculate A swimmer runs horizontally off...Ch. 4 - Baseball and the Washington Monument On August 25,...Ch. 4 - A basketball is thrown horizontally with an...Ch. 4 - Predict/Calculate A ball rolls off a table and...Ch. 4 - A certain projectile is launched with an initial...Ch. 4 - Three projectiles (A, B, and C) are launched with...Ch. 4 - Three projectiles (A, B, and C) are launched with...Ch. 4 - A cannonball is launched at an angle above level...Ch. 4 - A second baseman tosses the ball to the first...Ch. 4 - A soccer ball is kicked with a speed of 15.6 m/s...Ch. 4 - In a game of basketball a forward makes a bounce...Ch. 4 - Predict/Calculate Snowballs are thrown with a...Ch. 4 - In Problem 34, find the direction of motion of the...Ch. 4 - A golfer gives a ball a maximum initial speed of...Ch. 4 - What is the highest tree the ball in the previous...Ch. 4 - The hang time of a punt is measured to be 4.50 s....Ch. 4 - In a friendly game of handball, you hit the ball...Ch. 4 - On a hot summer day a young girl swings on a rope...Ch. 4 - A certain projectile is launched with an initial...Ch. 4 - Punkin Chunkin In Dover, Delaware, a...Ch. 4 - A dolphin jumps with an initial velocity of 12.0...Ch. 4 - A player passes a basketball to another player who...Ch. 4 - A golf ball is struck with a five iron on level...Ch. 4 - Predict/Explain You throw a ball into the air with...Ch. 4 - A football quarterback shows off his skill by...Ch. 4 - A clever inventor has created a device that can...Ch. 4 - Predict/Calculate Volcanoes on lo Astronomers have...Ch. 4 - Predict/Calculate A soccer ball is kicked with an...Ch. 4 - A soccer ball is kicked with an initial speed of...Ch. 4 - An archer shoots an arrow over a castle wall by...Ch. 4 - CE Child 1 throws a snowball horizontally from the...Ch. 4 - CE The penguin to the left in the accompanying...Ch. 4 - CE Dolphins may leap from the water just for the...Ch. 4 - CE Predict/Explain A person flips a coin into the...Ch. 4 - CE Predict/Explain Suppose the elevator in the...Ch. 4 - A train moving with constant velocity travels 170...Ch. 4 - A tennis ball is struck in such a way that it...Ch. 4 - A person tosses a ball for her puppy to retrieve....Ch. 4 - An osprey flies horizontally with a constant speed...Ch. 4 - Predict/Calculate A hot-air balloon rises from the...Ch. 4 - In a friendly neighborhood squirt gun contest a...Ch. 4 - BIO Spitting Llamas An agitated llama may spit to...Ch. 4 - A particle leaves the origin with an initial...Ch. 4 - BIO When the dried-up seed pod of a scotch broom...Ch. 4 - Trick Shot In an Internet video an athlete...Ch. 4 - A shot-putter throws the shot with an initial...Ch. 4 - Two marbles are launched at t = 0 in the...Ch. 4 - Rescue Swimmers Coast Guard rescue swimmers are...Ch. 4 - A football player kicks a field goal, launching...Ch. 4 - A ball thrown straight upward returns to its...Ch. 4 - Predict/Calculate To decide who pays for lunch, a...Ch. 4 - Predict/Calculate A cannon is placed at the bottom...Ch. 4 - A golfer hits a shot to an elevated green. The...Ch. 4 - Shot Put Record A mens world record for the shot...Ch. 4 - Referring to Conceptual Example 4-13, suppose the...Ch. 4 - A Lob Pass Versus a Bullet A quarterback can throw...Ch. 4 - For summertime fun, you decide to combine diving...Ch. 4 - Landing on Mars When the twin exploration rovers,...Ch. 4 - Collision Course A useful rule of thumb in...Ch. 4 - As discussed in Example 4-14, the archerfish hunts...Ch. 4 - Find the launch angle for which the range and...Ch. 4 - A mountain climber jumps a crevasse of width W by...Ch. 4 - Landing on a Different Level A projectile fired...Ch. 4 - A mountain climber jumps a crevasse by leaping...Ch. 4 - Projectiles: Coming or Going? Most projectiles...Ch. 4 - Caterpillar Pellets The larvae (caterpillars) of...Ch. 4 - Caterpillar Pellets The larvae (caterpillars) of...Ch. 4 - Caterpillar Pellets The larvae (caterpillars) of...Ch. 4 - Caterpillar Pellets The larvae (caterpillars) of...Ch. 4 - Referring to Example 4-9 (a) At what launch angle...Ch. 4 - Referring to Example 4-9 Suppose that the golf...Ch. 4 - Referring to Example 4-11 Suppose the ball is...Ch. 4 - Predict/Calculate Referring to Example 4-11...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. Current evidence suggests that ordinar...
The Cosmic Perspective Fundamentals (2nd Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desi...
Cosmic Perspective Fundamentals
In Example 20.2, find the position on the y-axis where Q will experience the greatest force.
Essential University Physics: Volume 2 (3rd Edition)
When spring finally arrives in the mountains, the snow pack may be two meters deep, composed of 50 ice and 50 a...
An Introduction to Thermal Physics
Description of Motion:
Tutorials in Introductory Physics
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
- World’s Longest Par 3. The tee of the world’s longest par 3 sits atop South Africa’s Hanglip Mountain at 400.0 m above the green and can only be reached by helicopter. The horizontal distance to the green is 359.0 in. Neglect air resistance and answer the following questions. (a) If a golfer launches a shot that is 40 with respect to the horizontal, what initial velocity must she give the ball? (b) What is the time to reach the green?arrow_forward(a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 40.0 m/s (144 km/h). How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long? (b) Discuss what your answer implies about the margin of error in this act—that is, consider how much greater the range is than the horizontal distance he must travel to miss the end of the last bus. (Neglect air resistance.)arrow_forwardA person standing at the top of a hemispherical rock of radius R kicks a ball (initially at rest on the top of the rock) to give it horizontal velocity vi as shown in Figure P3.56. (a) What must be its minimum initial speed if the ball is never to hit the rock after it is kicked? (b) With this initial speed, how far from the base of the rock does the ball hit the ground?arrow_forward
- An object is launched at a velocity of 20 m/s in a direction making an angle of 35° with the vertical above the ground. a) What is the maximum horizontal distance reached by the object? b) What is the total flight time of the object? c) What is the velocity of the object upon hitting the target?arrow_forwardA test rocket is launched by accelerating it along a 200.0m incline at 1.85m/s2 starting from rest at point A. The incline rises at 35.0o above the horizontal, and at the instant the rocket leaves it, it's engines turn off, and it is subject only to gravity (air resistance can be ignored) a) find the maximum height above the ground that the rocket reaches in m b) find the greatest horizontal range of the rocketbeyond point Aarrow_forwardA ball is kicked with an initial velocity of 17 m/s in the horizontal direction and 12 m/s in the vertical direction. a) At what speed does the ball hit the ground? b) For how long does the ball remain in the air? c) What maximum height is attained by the ball? 2 m S marrow_forward
- A snowball is thrown at a speed of 15 m/s and an angle of 55 degrees. a) What are the horizontal and vertical initial velocities? b) How long is the snowball in the air? c) How far does it go?arrow_forwardTwo rocks are thrown horizontally off a 180 m cliff. One rock is thrown with a speed of 10 m/s and the other is thrown with a speed of 20 m/s a) How much time does it take each rock to hit the ground? b) How far from the base of the cliff does each rock land? c) What is the horizontal and vertical speed of each rock when it hits the ground?arrow_forwardIf a baseball player can throw a ball a maximum distance of 200 ft over the ground. What is the maximum vertical height to which he can throw it? Assume the ball to have the same initial speed in each case. A. 40 ft C. 60 ft B. 25 ft D. 50 ftarrow_forward
- a.) What is the horizontal and vertical components of the initial velocity of the cannonball? b.) What is the initial speed of the cannonball? c.) What is the angle of the initial velocity of the cannonball.arrow_forwardA golfer hits a golfball off a cliff from 8.5 metres above flat ground. The golfball is hit with an initial velocity of 43m/s [33 degrees above the horizontal]. a) Calculate the time of flight of the golfball. b) Calculate the horizontal range of the golfball. c) Calculate the maximum height of the golfball above the ground. d) Calculate the velocity of the golfball at its maximum height.arrow_forwardA ball is thrown horizontally from a cliff with a speed of 8.0 m/s.a) What is the speed of the ball in the y-direction (vy) 2.0 seconds later?b) What is the total speed of the ball (2.0 seconds after the being thrown)?c) The ball lands 3.0 s after being thrown. How high was the cliff?d) How far away from the edge of the cliff does the ball land?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
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
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY