College Physics:
11th Edition
ISBN: 9781305965515
Author: SERWAY, Raymond A.
Publisher: Brooks/Cole Pub Co
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2.4, Problem 2.6QQ
A tennis player on serve tosses a ball straight up. While the ball is in free fall, does its acceleration (a) increase, (b) decrease, (c) increase and then decrease, (d) decrease and then increase, or (e) remain constant?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
An Osprey can fly horizontally (not diving) at a maximum speed of 70.0 km/hr. The bird takes off from rest at the edge of a cliff, heading east, and accelerates at a rate of 1.21 m/s2. The osprey can decelerate at higher rate of 2.43 m/s2. The Osprey can reach top speeds of about 84 mph. When doing so, it does not flap its wings. Rather, it relies on its gravitational force to accelerate it downwards.
a. Assuming that it starts from rest, and assuming that drag forces are slim, how long will it take for the osprey to reach its top speed?
b. How far does it travel during this time?
c. Near the top speed, drag forces become important, and in fact the terminal velocity is determined by the drag force. Assuming that the osprey's body can be modeled as a cylinder, with its cross-sectional area equal to that of a circle with radius of 10 cm, what is the coefficient of drag C for a hawk?
A rocket is fired vertically and ascends with a constant vertical acceleration of 64 ft/s2 for 1.0 min. Its fuel is then all used and it continues as a free particle. (a) What is the maximum altitude reached? (b) What is the total time elapsed from take-off until the rocket strikes the earth?
The magnitude of a particle's acceleration changes with its speed, v, as
a =
where y is a positive constant. The initial speed of the particle is vo. How long
does it take for the particle's speed to reduce to the half of its initial value ()?
1
2yvo2
1
4yvo²
3
2yvo?
2
Chapter 2 Solutions
College Physics:
Ch. 2.1 - Figure 2.4 shows the unusual path of a confused...Ch. 2.1 - True or False? (a) A car must always have an...Ch. 2.1 - Parts (a), (b), and (c) of Figure 2.10 represent...Ch. 2.2 - The three graphs in Figure 2.13 represent the...Ch. 2.2 - Figure 2.14a is a diagram of a multiflash image of...Ch. 2.4 - A tennis player on serve tosses a ball straight...Ch. 2.4 - As the tennis ball of Quick Quiz 2.6 travels...Ch. 2.4 - A skydiver jumps out of a hovering helicopter. A...Ch. 2 - If the velocity of a particle is nonzero, can the...Ch. 2 - If the velocity of a particle is zero, can the...
Ch. 2 - If a car is traveling eastward, can its...Ch. 2 - (a) Can the equations in Table 2.4 be used in a...Ch. 2 - Two cars are moving in the same direction in...Ch. 2 - Figure CQ2.6 shows strobe photographs taken of a...Ch. 2 - (a) Can the instantaneous velocity of an object at...Ch. 2 - A ball is thrown vertically upward. (a) What are...Ch. 2 - An object moves along the x-axis, its position...Ch. 2 - A ball is thrown straight up in the air. For which...Ch. 2 - A juggler throws a bowling pin straight up in the...Ch. 2 - A racing car starts from rest and reaches a final...Ch. 2 - The speed of a nerve impulse in the human body is...Ch. 2 - Light travels at a speed of about 3 103 m/s. (a)...Ch. 2 - A person travels by car from one city to another...Ch. 2 - A football player runs from his own goal line to...Ch. 2 - Two boats start together and race across a...Ch. 2 - A graph of position versus time for a certain...Ch. 2 - A motorist drives for 35.0 minutes at 85.0 km/h...Ch. 2 - A tennis player moves in a straight-line path as...Ch. 2 - A jet plane has a takeoff speed of v0 = 75 m/s and...Ch. 2 - Two cars travel in the same direction along a...Ch. 2 - The cheetah can reach a top speed of 114 km/h (71...Ch. 2 - An athlete swims the length L of a pool in a time...Ch. 2 - A person lakes a trip, driving with a constant...Ch. 2 - A tortoise can run with a speed of 0.10 m/s, and a...Ch. 2 - To qualify for the finals in a racing event, a...Ch. 2 - A paper in the journal Current Biology tells of...Ch. 2 - A graph of position versus time for a certain...Ch. 2 - A race car moves such that, its position fits the...Ch. 2 - Runner A is initially 4.0 mi west of a flagpole...Ch. 2 - A particle starts from rest and accelerates as...Ch. 2 - A 50.0-g Super Ball traveling at 25.0 m/s bounces...Ch. 2 - The average person passes out at an acceleration...Ch. 2 - A certain car is capable of accelerating at a rate...Ch. 2 - The velocity vs. time graph for an object moving...Ch. 2 - A steam catapult launches a jet aircraft from the...Ch. 2 - PROBLEM A race car starting from rest accelerates...Ch. 2 - An object moving with uniform acceleration has a...Ch. 2 - In 1865 Jules Verne proposed sending men to the...Ch. 2 - A truck covers 40.0 m in 8.50 s while uniformly...Ch. 2 - A speedboat increases its speed uniformly from vi...Ch. 2 - A Cessna aircraft has a liftoff speed of 120....Ch. 2 - An object moves with constant acceleration 4.00...Ch. 2 - In a test run, a certain car accelerates uniformly...Ch. 2 - A jet plane lands with a speed of 100 m/s and can...Ch. 2 - Speedy Sue, driving at 30.0 m/s, enters a one-lane...Ch. 2 - A record of travel along a straight path is as...Ch. 2 - A train is traveling down a straight track at 20...Ch. 2 - A car accelerates uniformly from rest to a speed...Ch. 2 - A car starts from rest and travels for 5.0 s with...Ch. 2 - A car starts from rest and travels for t1 seconds...Ch. 2 - In the Daytona 500 auto race, a Ford Thunderbird...Ch. 2 - The kinematic equations can describe phenomena...Ch. 2 - A hockey player is standing on his skates on a...Ch. 2 - A train 4.00 102 m long is moving on a straight...Ch. 2 - A ball is thrown vertically upward with a speed of...Ch. 2 - A ball is thrown directly downward with an initial...Ch. 2 - A certain freely falling object, released from...Ch. 2 - An attacker at the base of a castle wall 3.65 m...Ch. 2 - Traumatic brain injury such as concussion results...Ch. 2 - A small mailbag is released from a helicopter that...Ch. 2 - A tennis player tosses a tennis ball straight up...Ch. 2 - A package is dropped from a helicopter that is...Ch. 2 - A model rocket is launched straight upward with an...Ch. 2 - A baseball is hit so that it travels straight...Ch. 2 - A truck tractor pulls two trailers, one behind the...Ch. 2 - Colonel John P. Stapp, USAF, participated in...Ch. 2 - A bullet is fired through a board 10.0 cm thick in...Ch. 2 - A speedboat moving at 30.0 m/s approaches a...Ch. 2 - A student throws a set of keys vertically upward...Ch. 2 - Mature salmon swim upstream, returning to spawn at...Ch. 2 - An insect called the froghopper (Philaenus...Ch. 2 - An object is moving in the positive direction...Ch. 2 - A ball is thrown upward from the ground with an...Ch. 2 - A player holds two baseballs a height h above the...Ch. 2 - A ball thrown straight up into the air is found to...Ch. 2 - The thickest and strongest chamber in the human...Ch. 2 - Emily challenges her husband, David, to catch a 1...Ch. 2 - A mountain climber stands at the top of a 50.0-m...Ch. 2 - One of Aesops fables tells of a rare between a...Ch. 2 - In Bosnia, the ultimate test of a young nuns...Ch. 2 - A stuntman sitting on a tree limb wishes to drop...
Additional Science Textbook Solutions
Find more solutions based on key concepts
What discovery in the 15th century greatly advanced progress in science?
Conceptual Physical Science Explorations
Whether two metal foil leaves an electroscope get opposite charge when the electroscope is charged.
The Physics of Everyday Phenomena
What is a concept?
Integrated Science
Using the definitions in Eqs. 1.1 and 1.4, and appropriate diagrams, show that the dot product and cross produc...
Introduction to Electrodynamics
1. What are the temperatures for freezing water on the Celsius and the Fahrenheit scales, respectively? For boi...
Conceptual Physical Science (6th 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
- The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making straight skid marks 62.4 m long, all the way to the tree. With what speed does the car then strike the tree?arrow_forwardA sports car moves at a constant velocity and travels 120m in 5.0s. If it brakes and comes to a stop in 4.0s, what is the magnitude of acceleration (assumed constant) in m/s2 and in g's (g=9.80 m/s2)arrow_forward#2) For this problem, ignore air resistance and assume the magnitude of the acceleration due to gravity is equal to 9.80 m/s². Let's also use up as the positive direction. Report answers to 3 sig figs. ECANSU (A) A rocket, initially at rest on the ground, accelerates straight upward from rest with constant net acceleration of 32.8 m/s2. The acceleration period lasts for a time of 3.47 s until the fuel is exhausted. Find the height the rocket reaches in the first 3.47 s. Show starting equations, algebra first, show final equations, numbers last. (B) After 3.47s, the fuel runs out and the rocket is now in free fall as it continues its motion. Find the total maximum height the rocket reaches as measured from the ground. Show starting equations, algebra first, show final equations, numbers last.arrow_forward
- 8. An object moves on a horizontal coordinate line. Its directed distance s from the origin at the endof t seconds is s(t) = t^3 − 9t^2 + 24t − 16 feet.(a) when is the particle moving to the left?(b) what is the acceleration when its velocity is equal to zero?(c) when is the acceleration positive?(d) when is the particle slowing down?(e) what is the total distance travelled by the particle after 4 seconds? Please answer sub-activity c,d, and earrow_forward(a) Can a particle moving with instantaneous speed 5.00 m/s on a path with radius of curvature 3.00 m have an acceleration of magnitude 11.00 m/s²? O Yes O No If the answer is yes, explain how it can happen; if the answer is no, explain why not. This answer has not been graded yet. (b) Can it have an acceleration of magnitude 7.00 m/s²? O Yes O No If the answer is yes, explain how it can happen; if the answer is no, explain why not. This answer has not been graded yet. Need Help? Submit Answer Read Itarrow_forwardA hot-air balloon is ascending at the rate of 14 m/s and is 73 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground? (a) Number i Units (b) Number i Unitsarrow_forward
- A particle leaves the origin going 4.2 m/s in the +x direction. At all times it experiences a constant acceleration of 5.34 m/s2 in the -x direction. What will be the particle's speed when it returns to the origin? Answer: Choose...arrow_forwardA 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?arrow_forwardThe human body can survive a negative sudden stop if the magnitude of the acceleration is less than 250m/s². If you are in an automobile accident with an initial speed of 105km/h and are stopped by an airbag that inflates from the dashboard, over what distance must the airbag stop you for you to survive the crash?arrow_forward
- A lunar lander is making its descent to Moon Base I . The lander descends slowly under the retro-thrust of its descent engine. The engine is cut off when the lander is 5.0 m above the surface and has a downward speed of 0.8 m>s.With the engine off, the lander is in free fall. What is the speed of the lander just before it touches the surface? The acceleration due to gravity on the moon is 1.6 m/s2.arrow_forwardA dancing policeman performs a stunt by tossing his cap vertically upward with an initial speed of 10 m/s and falls back to his head on its way down. How long will it take the cap to reach the highest point of its path?arrow_forwardSuppose you are standing at the edge of a 200 meter tall cliff and are in the habit of dropping objects from great heights. So, you drop a rock off of the cliff. (a) What are the initial position s(0), velocity v(0), and acceleration a(0) of the rock? b) Use your answers from part (a) to define functions s(t), v(t), and a(t) describing the position, velocity, and acceleration, respectively, after t seconds. (c) How long will it take for the rock to hit the ground? How fast is it falling when it hits?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