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 2, Problem 2.74AP
Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi, at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in terms of vi, g, h. and t. (a) What is the time interval between when the first ball strikes the ground and the second ball strikes the ground? (b) Find the velocity of each ball as it strikes the ground, (c) How far apart are the balls at a time t after they are thrown and before they strike the ground?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A physics student stands on a cliff overlooking a lake and decides to throw a baseball to her friends in the water below. She throws the baseball with a velocity of 15.5 m/s15.5 m/s at an angle of 31.5∘31.5∘ above the horizontal. When the baseball leaves her hand, it is 11.5 m11.5 m above the water. How far does the baseball travel horizontally before it hits the water? Neglect any effects of air resistance when calculating the answer.
I am stuck on the time part and have no idea how we get time can you please explain. Thank you.
As an airplane taxies on the runway with a speed of 16.5 m>s,a flight attendant walks toward the tail of the plane with a speed of 1.22 m>s. What is the flight attendant’s speed relative to theground?
A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 146 feet per second from an initial height of 89 feet off the ground, then the height of the projectile, h, in feet, t seconds after it's shot is given by the equation:
h=−16t2+146t+89h=-16t2+146t+89
Find the two points in time when the object is 126 feet above the ground (to one decimal places).
Answer: The object is 126 feet off the ground at the following times: (Enter your two answers separated by a comma. Round to ONE decimal places.)
Chapter 2 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 2 - Are officers in the highway patrol more interested...Ch. 2 - Make a velocitytime graph for the car in Figure...Ch. 2 - If a car is traveling eastward and slowing down,...Ch. 2 - Which one of the following statements is true? (a)...Ch. 2 - In Figure 2.12, match each vxt graph on the top...Ch. 2 - Consider the following choices: (a) increases, (b)...Ch. 2 - One drop of oil falls straight down onto the road...Ch. 2 - A racing car starts from rest at t = 0 and reaches...Ch. 2 - A juggler throws a bowling pin straight up in the...Ch. 2 - When applying the equations of kinematics for an...
Ch. 2 - A cannon shell is fired straight up from the...Ch. 2 - An arrow is shot straight up in the air at an...Ch. 2 - When the pilot reverses the propeller in a boat...Ch. 2 - A rock is thrown downward from the top of a...Ch. 2 - A skateboarder starts from rest and moves down a...Ch. 2 - Oil another planet, a marble is released from rest...Ch. 2 - As an object moves along the .v axis, many...Ch. 2 - A pebble is dropped from rest from the lop of a...Ch. 2 - A student at the top of a building of height h...Ch. 2 - Von drop a ball from a window located on an upper...Ch. 2 - A pebble is released from rest at a certain height...Ch. 2 - A ball is thrown straight up in the air. For which...Ch. 2 - A hard rubber ball, not affected by air resistance...Ch. 2 - Each of the strobe photographs (a), (b). and (c)...Ch. 2 - If the average velocity of an object is zero in...Ch. 2 - Try the following experiment away from traffic:...Ch. 2 - Prob. 2.3CQCh. 2 - Prob. 2.4CQCh. 2 - Prob. 2.5CQCh. 2 - You throw a ball vertically upward so that it...Ch. 2 - (a) Can (he equations of kinematics (Eqs....Ch. 2 - (a) Can the velocity of an object at an instant of...Ch. 2 - Two cars are moving in the same direction in...Ch. 2 - Section 2.1 Position, Velocity, and Speed The...Ch. 2 - The speed of a nerve impulse in the human body is...Ch. 2 - A prison walks first al a constant speed of 5.00...Ch. 2 - A particle moves according to the equation x =...Ch. 2 - The position of a pinewood derby car was observed...Ch. 2 - The position of a particle moving along the x axis...Ch. 2 - A positiontime graph for a particle moving along...Ch. 2 - An athlete leaves one end of a pool of length L at...Ch. 2 - Find the instantaneous velocity of the particle...Ch. 2 - Review. The North American and European plates of...Ch. 2 - A hare and a tortoise compete in a race over a...Ch. 2 - A car travels along a straight line at a constant...Ch. 2 - A person takes a trip, driving with a constant...Ch. 2 - Review. A 50.0-g Super Ball traveling al 25.0 m/s...Ch. 2 - A velocity-time graph for an object moving along...Ch. 2 - A child rolls a marble on a bent track that is 100...Ch. 2 - Figure P2.9 shows a graph of vx versus t for the...Ch. 2 - (a) Use the data in Problem 3 to construct a...Ch. 2 - A particle starts from rest and accelerates as...Ch. 2 - An object moves along the x axis according to the...Ch. 2 - A panicle mows along the x axis according to the...Ch. 2 - Draw motion diagrams for (a) an object moving to...Ch. 2 - Each of the strobe photographs (a), (b), and (c)...Ch. 2 - The minimum distance required to stop a car moving...Ch. 2 - An electron in a cathode-ray tube accelerates...Ch. 2 - A speedboat moving at 30.0 m/s approaches a...Ch. 2 - A parcel of air moving in a straight tube with a...Ch. 2 - A truck covers 40.0 m in 8.50 s while smoothly...Ch. 2 - An object moving with uniform acceleration has a...Ch. 2 - In Example 2.7, we investigated a jet landing on...Ch. 2 - Prob. 2.31PCh. 2 - Solve Example 2.8 by a graphical method. On the...Ch. 2 - A truck on a straight road starts from rest,...Ch. 2 - Why is the following situation impossible?...Ch. 2 - The driver of a car slants on the brakes when he...Ch. 2 - Prob. 2.36PCh. 2 - A speedboat travels in a straight line and...Ch. 2 - A particle moves along the x axis. Its position is...Ch. 2 - A glider of length moves through a stationary...Ch. 2 - A glider of length 12.4 cm moves on an air track...Ch. 2 - An object moves with constant acceleration 4.00...Ch. 2 - At t = 0, one toy car is set rolling on a straight...Ch. 2 - Figure P2.43 represents part of the performance...Ch. 2 - A hockey player is standing on his skates on a...Ch. 2 - In Chapter 9, we will define the center of mass of...Ch. 2 - An attacker at the base of a castle wall 3.65 m...Ch. 2 - Why is the following situation impossible? Emily...Ch. 2 - A baseball is hit so that it travels straight...Ch. 2 - It is possible to shoot an arrow at a speed as...Ch. 2 - The height of a helicopter above the ground is...Ch. 2 - Prob. 2.51PCh. 2 - A ball is thrown upward from the ground with an...Ch. 2 - A student throws a set of keys vertically upward...Ch. 2 - At time t = 0, a student throws a set of keys...Ch. 2 - A daring ranch hand sitting on a tree limb wishes...Ch. 2 - A package is dropped at time t = 0 from a...Ch. 2 - Automotive engineers refer to the time rate of...Ch. 2 - A student drives a moped along a straight road as...Ch. 2 - The speed of a bullet as it travels down the...Ch. 2 - A certain automobile manufacturer claims that its...Ch. 2 - The froghopper Philaenus spumarius is supposedly...Ch. 2 - An object is at x = 0 at t = 0 and moves along the...Ch. 2 - Ail inquisitive physics student and mountain...Ch. 2 - In Figure 2.11b, the area under the velocitytime...Ch. 2 - A ball starts from rest and accelerates at 0.5(H)...Ch. 2 - A woman is reported to have fallen 144 ft from the...Ch. 2 - An elevator moves downward in a tall building at a...Ch. 2 - Why is the following situation impossible? A...Ch. 2 - The Acela is an electric train on the...Ch. 2 - Two objects move with initial velocity 8.00 m/s,...Ch. 2 - At t = 0, one athlete in a race running on a long,...Ch. 2 - A catapult launches a test rocket vertically...Ch. 2 - Kathy tests her new sports car by racing with...Ch. 2 - Two students are on a balcony a distance h above...Ch. 2 - Two objects, A and B, are connected by hinges to a...Ch. 2 - Astronauts on a distant planet toss a rock into...Ch. 2 - A motorist drives along a straight road at a...Ch. 2 - A commuter train travels between two downtown...Ch. 2 - Lisa rushes down onto a subway platform to find...Ch. 2 - A hard rubber ball, released at chest height,...Ch. 2 - A blue car of length 4.52 m is moving north on a...Ch. 2 - Review. As soon as a traffic light turns green, a...Ch. 2 - In a womens 100-m race, accelerating uniformly,...Ch. 2 - Two thin rods are fastened to the inside of a...Ch. 2 - A man drops a rock into a well, (a) The man hears...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Scientific Method.
Glencoe Physics: Principles and Problems, Student Edition
The net force between the thymine and adenine.
Physics: Principles with Applications
2. Which of the following is the best example of the use of a referent? _
a. A red bicycle
b. Big as a dump tru...
Physical Science
1. What are the temperatures for freezing water on the Celsius and the Fahrenheit scales, respectively? For boi...
Conceptual Physical Science (6th Edition)
Given: W = 132 J t = 7.00 s p = ?
Applied Physics (11th Edition)
60. The solar system is 25,000 light years from the center of our Milky Way galaxy. One light year is the dista...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th 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
- Consider a dragster that, when the light turns green, accelerates uniformly from rest and completes a 372 meter race in a time of 6.61 seconds. a) During this period, what is the dragster's acceleration expressed as a multiple of the acceleration due to gravity, g? b) If the dragster could continue with this average acceleration, what would its speed be, in miles per hour, after it has traveled a total distance of 1.6km1.6km, which is approximately one mile?arrow_forwardAfter a ball rolls off the edge of a horizontal table at time t = 0, its velocity as a function of time is given by:v = 1.2 i - 9.8t jwhere v is in meters per second and t is in seconds. The ball’s displacement away from the edge of the table, during the time interval of 0.380 s for which the ball is in flight, is given by:Δ⃗r=∫00.380s⃗vdtTo perform the integral, you can use the calculus theorem:∫[A+Bf(x)]dx=∫Adx+B∫f(x)dx You can think of the units and unit vectors as constants, represented by A and B. Perform the integration to calculate the displacement of the ball from the edge of the table at 0.380 sarrow_forwardA particle P projected from a point O on horizontal ground hits the ground after 2.4 seconds.The horizontal component of the initial velocity of P is 5/3 d ms-1The speed of P as it passes over the wall is 16ms-1(d) Find the value of d correct to 3 significant figures.May I have the answer for D please as the rules is only to do 3 of them so I asked separatelyarrow_forward
- At an airport, Anna is stationary, Bert is walking at a speed of 1.0 m/s, Carla is standing while Dodong is walking on a platform that moves with a speed of 2.0 m/s. Anna observes Bert, Carla, and Dodong moving away from her in the same direction. Anna observes Dodong moving away from her at a speed of 3.0 m/s. What is Anna’s velocity relative to the ground or earth?arrow_forwardA ball is thrown horizontally at speed v1 from a window which is H above level ground lands a time t1 after it was thrown. If the ball had been thrown horizontally at speed 3v1 from a the same window, how long would the ball have been in the air? (Assume neither ball interacts with anything between being thrown and landing on the ground.) Group of answer choices t1 3t1 sqrt(3t1) 3/2t1 9t1arrow_forwardTwo students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi , at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in terms of vi , g, h. and t. (a) What is the time interval between when the first ball strikes the ground and the second ball strikes the ground? (b) Find the velocity of each ball as it strikes the ground, (c) How far apart are the balls at a time t after they are thrown and before they strike the ground?arrow_forward
- (The complete question is in the picture) In one of his adventures, Mario stands on top of a magic platform that vanishesthe moment he jumps away from it. The platform is 20.0 [m] above the ground. If Mariojumps directly upward and takes 1.60 [s] to reach a maximum height of 12.5 [m] from theplatform, how long will it take him to reach the ground from the moment he jumps fromthe vanishing platform?A. 2.58 [s]B. 3.20 [s]C. 4.18 [s]D. 5.16 [s]arrow_forwardA landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 2.35 m high, and from there it will fall into a pool (Fig. P3.42). (a) Will the space behind the waterfall be wide enough for a pedestrian walkway? (b) To sell her plan to the city council, the architect wants to build a model to standard scale, which is one-twelfth actual size. How fast should the water flow in the channel in the model? Figure P3.42arrow_forwardThe formula s(t)=-4.9t²+49t+15 gives the height in meters of an object after it is thrown vertically upward from a point 15 meters above the ground at a velocity of 49sec. How high above the ground will the object reach?arrow_forward
- A rocket ship has a position given by x=bt^2 meters. In order for it to reach a velocity of 3,000 m/s in 40,000 meters, what must be the value of b?arrow_forwardA bunch of keys was thrown directly upward by Macoy, who is looking out of the window, to be caught by Len-Len living on a room right above him. Unfortunately, Len-Len wasn't able to catch the keys and therefore the bunch of keys went straight to the ground. If Macoy gave the keys an upward speed of 3 m/s and the keys reached the ground after Macoy threw the keys upward in 4 seconds, the speed of the keys just before it reached the ground is 36.2 m/s the height of his room from the ground is 66.4 m c. What is the keys' acceleration when it reached its highest point?d. What is the keys' velocity when it reached its highest point?arrow_forwardTwo stones are released from rest, at the same height above the ground, one after the other. Will the time interval between the instants at which they hit the ground be Choose one: a. Greater than the time interval between the instants of their release? b. Equal to the time interval between the instants of their release? c. Smaller than the time interval between the instants of their release? A golfer gives a golf ball a velocity of 48 m/s at an angle of 40° with the horizontal. What is the vertical component of the ball's initial velocity? Choose one: a. 31 m/s b. 48 m/s c. 36 m/s d. 36.7 m/s A sprinter accelerates from rest at 6.0 m/s2. How long will it take the sprinter to reach a velocity of 8.0 m/s? Choose one: a. 14 s b. 1.3 s c. 0.75 m/s d. 48 sarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Relative Velocity - Basic Introduction; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=_39hCnqbNXM;License: Standard YouTube License, CC-BY