What subchapters do I have to learn to solve these problems? 1. An airplane increases its speed at the average rate of 15 m/s2

. How much time does it

take to increase its speed from 100 m/s to 160 m/s?
2. A car that is initially moving at 7.50 m/s begins to accelerate forward uniformly at 0.550
m/s2
.
a. How long after beginning to accelerate does it take the car to move 3.50 km?
b. How fast is the car moving just as it has traveled 3.50 km?
3. At the instant a traffic light turns green, a car that has been waiting at the intersection
starts ahead with a constant acceleration of 2.00 m/s2

. At that moment a truck traveling

with a constant velocity of 15.0 m/s overtakes and passes the car.
a. Calculate the time necessary for the car to reach the truck.
b. Calculate the distance beyond the traffic light that the car will pass the truck.
c. Determine the speed of the car when it passes the truck.
4. A car is moving with a constant acceleration. At time t = 5.0 s its velocity is 8.0 m/s in
the forward direction, and at time t = 8.0 s its velocity is 12.0 m/s forward. What is the
distance traveled in that interval of time?
5. A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, causing the car
to slow down with constant acceleration. The car comes to a stop in a distance of 120 m.
How fast was the car moving when it was 60.0 m past the point where the brakes were
applied?
6. A player hits a tennis ball into the air with an initial velocity of 32 m/s at 35° from the
vertical. How fast is the ball moving at the highest point in its trajectory if air resistance
is negligible?
7. A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A
stopwatch measures the stone's trajectory time from the top of the cliff to the bottom to be
4.3 s. What is the height of the cliff if air resistance is negligibly small?
8. At target practice, a rifle bullet is fired at an angle of 30° below the horizontal with an
initial velocity of 800 m/s from the top of a cliff 80 m high. How far from the base of the
cliff does it strike the level ground below if air resistance is negligible?
9. A batter hits a home run in which the ball travels 110 m horizontally with no appreciable
air resistance. If the ball left the bat at 50° above the horizontal just above ground level,
how fast was it hit?
10. A hunter points a rifle horizontally and holds it 3.30 m above the ground. The bullet
leaves the barrel at 325 m/s and experiences no significant air resistance. The acceleration
due to gravity at this location is 9.80 m/s2
.

a. How long does it take for the bullet to strike the ground?
b. How far horizontally does it travel?
11. A projectile leaves the ground at 150 m/s and reaches a maximum height of 0.57 km. If
there was no air resistance, at what angle above the horizontal did it leave the ground?
12. A boy kicks a football from ground level with an initial velocity of 20 m/s at an angle of
30° above the horizontal. What is the horizontal distance to the point where the football
hits the ground if we neglect air resistance?
13. A projectile is fired from ground level at an angle above the horizontal on an airless
planet where g = 10.0 m/s2

. The initial x and y components of its velocity are 86.6 m/s
and 50.0 m/s respectively. How long after firing does it take before the projectile hits the
level ground?

14. A projectile is fired at an angle above the horizontal at a location where g = 9.8 m/s2
. The
initial x and y components of its velocity are 86.6 m/s and 50 m/s respectively. At what
angle was the projectile fired above the horizontal? Preface
Unit 1  Mechanics
Chapter 1  Units and Measurement
Introduction
1.1 The Scope and Scale of Physics
1.2 Units and Standards
1.3 Unit Conversion
1.4 Dimensional Analysis
1.5 Estimates and Fermi Calculations
1.6 Significant Figures
1.7 Solving Problems in Physics
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 2  Vectors
Introduction
2.1 Scalars and Vectors
2.2 Coordinate Systems and Components of a Vector
2.3 Algebra of Vectors
2.4 Products of Vectors
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 3  Motion Along a Straight Line
Introduction
3.1 Position, Displacement, and Average Velocity
3.2 Instantaneous Velocity and Speed
3.3 Average and Instantaneous Acceleration
3.4 Motion with Constant Acceleration
3.5 Free Fall
3.6 Finding Velocity and Displacement from Acceleration
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 4  Motion in Two and Three Dimensions
Introduction
4.1 Displacement and Velocity Vectors
4.2 Acceleration Vector
4.3 Projectile Motion
4.4 Uniform and Nonuniform Circular Motion
4.5 Relative Motion in One and Two Dimensions
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 5  Newton's Laws of Motion
Introduction
5.1 Forces
5.2 Newton's First Law
5.3 Newton's Second Law
5.4 Mass and Weight
5.5 Newton’s Third Law
5.6 Common Forces
5.7 Drawing Free-Body Diagrams
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 6  Applications of Newton's Laws
Introduction
6.1 Solving Problems with Newton’s Laws
6.2 Friction
6.3 Centripetal Force
6.4 Drag Force and Terminal Speed
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 7  Work and Kinetic Energy
Introduction
7.1 Work
7.2 Kinetic Energy
7.3 Work-Energy Theorem
7.4 Power
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 8  Potential Energy and Conservation of Energy
Introduction
8.1 Potential Energy of a System
8.2 Conservative and Non-Conservative Forces
8.3 Conservation of Energy
8.4 Potential Energy Diagrams and Stability
8.5 Sources of Energy
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Chapter 9  Linear Momentum and Collisions
Introduction
9.1 Linear Momentum
9.2 Impulse and Collisions
9.3 Conservation of Linear Momentum
9.4 Types of Collisions
9.5 Collisions in Multiple Dimensions
9.6 Center of Mass
9.7 Rocket Propulsion
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 10  Fixed-Axis Rotation
Introduction
10.1 Rotational Variables
10.2 Rotation with Constant Angular Acceleration
10.3 Relating Angular and Translational Quantities
10.4 Moment of Inertia and Rotational Kinetic Energy
10.5 Calculating Moments of Inertia
10.6 Torque
10.7 Newton’s Second Law for Rotation
10.8 Work and Power for Rotational Motion
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 11  Angular Momentum
Introduction
11.1 Rolling Motion
11.2 Angular Momentum
11.3 Conservation of Angular Momentum
11.4 Precession of a Gyroscope
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 12  Static Equilibrium and Elasticity
Introduction
12.1 Conditions for Static Equilibrium
12.2 Examples of Static Equilibrium
12.3 Stress, Strain, and Elastic Modulus
12.4 Elasticity and Plasticity
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 13  Gravitation
Introduction
13.1 Newton's Law of Universal Gravitation
13.2 Gravitation Near Earth's Surface
13.3 Gravitational Potential Energy and Total Energy
13.4 Satellite Orbits and Energy
13.5 Kepler's Laws of Planetary Motion
13.6 Tidal Forces
13.7 Einstein's Theory of Gravity
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 14  Fluid Mechanics
Introduction
14.1 Fluids, Density, and Pressure
14.2 Measuring Pressure
14.3 Pascal's Principle and Hydraulics
14.4 Archimedes’ Principle and Buoyancy
14.5 Fluid Dynamics
14.6 Bernoulli’s Equation
14.7 Viscosity and Turbulence
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Unit 2  Waves and Acoustics
Chapter 15  Oscillations
Introduction
15.1 Simple Harmonic Motion
15.2 Energy in Simple Harmonic Motion
15.3 Comparing Simple Harmonic Motion and Circular Motion
15.4 Pendulums
15.5 Damped Oscillations
15.6 Forced Oscillations
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 16  Waves
Introduction
16.1 Traveling Waves
16.2 Mathematics of Waves
16.3 Wave Speed on a Stretched String
16.4 Energy and Power of a Wave
16.5 Interference of Waves
16.6 Standing Waves and Resonance
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Chapter 17  Sound
Introduction
17.1 Sound Waves
17.2 Speed of Sound
17.3 Sound Intensity
17.4 Normal Modes of a Standing Sound Wave
17.5 Sources of Musical Sound
17.6 Beats
17.7 The Doppler Effect
17.8 Shock Waves
Chapter Review
Key Terms
Key Equations
Summary
Conceptual Questions
Problems
Additional Problems
Challenge Problems
Appendix A Units
Appendix B Conversion Factors
Appendix C Fundamental Constants
Appendix D Astronomical Data
Appendix E Mathematical Formulas
Appendix F Chemistry
Appendix G The Greek Alphabet
Answer Key
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Index