Motion in a Plane - Notes Class 11 Notes | EduRev

Class 11 : Motion in a Plane - Notes Class 11 Notes | EduRev

 Page 1


MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 1 
Motion in a Plane 
Chapter 3 
Page 2


MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 1 
Motion in a Plane 
Chapter 3 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 2 
Motion in a Plane 
•   Vector Addition 
•   Velocity 
•   Acceleration 
•   Projectile motion 
Page 3


MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 1 
Motion in a Plane 
Chapter 3 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 2 
Motion in a Plane 
•   Vector Addition 
•   Velocity 
•   Acceleration 
•   Projectile motion 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 3 
Graphical Addition and Subtraction 
of Vectors 
A vector is a quantity that has both a 
magnitude and a direction. Position is an 
example of a vector quantity. 
A scalar is a quantity with no direction.  The 
mass of an object is an example of a scalar 
quantity.  
Page 4


MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 1 
Motion in a Plane 
Chapter 3 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 2 
Motion in a Plane 
•   Vector Addition 
•   Velocity 
•   Acceleration 
•   Projectile motion 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 3 
Graphical Addition and Subtraction 
of Vectors 
A vector is a quantity that has both a 
magnitude and a direction. Position is an 
example of a vector quantity. 
A scalar is a quantity with no direction.  The 
mass of an object is an example of a scalar 
quantity.  
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 4 
Notation 
Vector:  F F
?
or  
The magnitude of a vector: 
. or  or  F F
?
F
Scalar: m (not bold face; no arrow) 
The direction of vector might be “35 ? south of east”; 
“20 ? above the +x-axis”; or…. 
Page 5


MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 1 
Motion in a Plane 
Chapter 3 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 2 
Motion in a Plane 
•   Vector Addition 
•   Velocity 
•   Acceleration 
•   Projectile motion 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 3 
Graphical Addition and Subtraction 
of Vectors 
A vector is a quantity that has both a 
magnitude and a direction. Position is an 
example of a vector quantity. 
A scalar is a quantity with no direction.  The 
mass of an object is an example of a scalar 
quantity.  
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 4 
Notation 
Vector:  F F
?
or  
The magnitude of a vector: 
. or  or  F F
?
F
Scalar: m (not bold face; no arrow) 
The direction of vector might be “35 ? south of east”; 
“20 ? above the +x-axis”; or…. 
MFMcGraw-PHY 1401 Chapter 3b - Revised: 6/7/2010 5 
To add vectors graphically they must be placed “tip to 
tail”.  The result (F
1
 + F
2
) points from the tail of the first 
vector to the tip of the second vector. 
This is sometimes called the resultant vector R 
F
1
 
F
2
 
R 
Graphical Addition of Vectors 
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