Question 1

If A+B=C and A2 + B2 = C2, then the vectors A and B are oriented perpendicular relative to one other.

Accepted Answer

A) True 
 B)False

Question 2

Consider a plane flying with groundspeed Vg and airspeed Va in a wind with velocity V. Which of the following relationships is true?

Accepted Answer

A)  Vg can be greater than Va + V 
B)  Vg = Va - V 
C)  Vg = Va + V 
D)  Vg can be less than Va + V 
E)  Vg can have any value between Va + V and Va - V 
A)  Vg can be greater than Va + V 
B)  Vg = Va - V 
C)  Vg = Va + V 
D)  Vg can be less than Va + V 
E)  Vg can have any value between Va + V and Va - V

Question 3

A pickup truck moves 25. m/s Eastward. Jerry is standing in the back and throws a baseball in what to him is the Southwest direction at 28. m/s (with respect to the truck). A person at rest would see the ball moving HOW FAST in WHAT DIRECTION?

Accepted Answer

20. m/s at

Question 4

A butterfly moves with a speed of v = 12.0 m/s. The x-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis must be

Accepted Answer

A)  30.0° 
B)  41.8° 
C)  53.0° 
D)  60.0° 
E)  48.2° 
A)  30.0° 
B)  41.8° 
C)  53.0° 
D)  60.0° 
E)  48.2°

If A+B=C and A² + B² = C2, then the vectors A and B are oriented perpendicular relative to one other.

Consider a plane flying with groundspeed V_g and airspeed V_a in a wind with velocity V. Which of the following relationships is true?

A pickup truck moves 25. m/s Eastward. Jerry is standing in the back and throws a baseball in what to him is the Southwest direction at 28. m/s (with respect to the truck). A person at rest would see the ball moving HOW FAST in WHAT DIRECTION?

A butterfly moves with a speed of v = 12.0 m/s. The x-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis must be

Measurement and Problem Solving

Kinematics: Description of Motion

Force and Motion

Work and Energy

Linear Momentum and Collisions

Circular Motion and Gravitation

Rotational Motion and Equilibrium

Solids and Fluids

Temperature and Kinetic Theory

Heat

Thermodynamics

Vibrations and Waves

Sound

Electric Charge, Forces, and Fields

Electric Potential, Energy, and Capacitance

Electric Current and Resistance

Basic Electric Circuits

Magnetism

Electromagnetic Induction and Waves

AC Circuits

Reflection and Refraction of Light

Mirrors and Lenses

Physical Optics: The Wave Nature of Light

Vision and Optical Instruments

Relativity

Quantum Physics

Quantum Mechanics and Atomic Physics

The Nucleus

Nuclear Reactions and Elementary Particles

Filters

Exam 3: Motion in Two Dimensions

If A+B=C and A2 + B2 = C2, then the vectors A and B are oriented perpendicular relative to one other.

Consider a plane flying with groundspeed Vg and airspeed Va in a wind with velocity V. Which of the following relationships is true?

A pickup truck moves 25. m/s Eastward. Jerry is standing in the back and throws a baseball in what to him is the Southwest direction at 28. m/s (with respect to the truck). A person at rest would see the ball moving HOW FAST in WHAT DIRECTION?

A butterfly moves with a speed of v = 12.0 m/s. The x-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis must be

Measurement and Problem Solving

Kinematics: Description of Motion

Force and Motion

Work and Energy

Linear Momentum and Collisions

Circular Motion and Gravitation

Rotational Motion and Equilibrium

Solids and Fluids

Temperature and Kinetic Theory

Heat

Thermodynamics

Vibrations and Waves

Sound

Electric Charge, Forces, and Fields

Electric Potential, Energy, and Capacitance

Electric Current and Resistance

Basic Electric Circuits

Magnetism

Electromagnetic Induction and Waves

AC Circuits

Reflection and Refraction of Light

Mirrors and Lenses

Physical Optics: The Wave Nature of Light

Vision and Optical Instruments

Relativity

Quantum Physics

Quantum Mechanics and Atomic Physics

The Nucleus

Nuclear Reactions and Elementary Particles

Filters

If A+B=C and A² + B² = C2, then the vectors A and B are oriented perpendicular relative to one other.

Consider a plane flying with groundspeed V_g and airspeed V_a in a wind with velocity V. Which of the following relationships is true?