JEE Syllabus
Static and dynamic friction;
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Sections of the chapter
6.1 Friction as the component of contact force
6.2 Kinetic friction
6.3 Static friction
6.4 Laws of friction
6.5 Understandng friction at atomic level
6.6 A Laboratory method to measure friction coefficient
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Study Plan
Day 1
6.1 Friction as the component of contact force
Example 6.1
6.2 Kinetic friction
Example 6.2
Day 2
6.3 Static friction
Ex. 6.3
W.O.E. 1,2,3,4
Day 3
6.4 Laws of friction
W.O.E. 5 to 8
Day 4
6.5 Understandng friction at atomic level
6.6 A Laboratory method to measure friction coefficient
Ex. 6.4
W.O.E. 9,10
Day 5
Chapter 6
Objective I
Day 6
Chapter 6
Objective II
Day 7
Chapter 6
Exercises 1 to 5
Day 8
Chapter 6
Exercises 6 to 10
Day 9
Chapter 6
Exercises 11 to 15
Day 10
Chapter 6
Exercises 16 to 20
Revision Period
Day 11
Chapter 6 Revision
Exercises 21 to 23
Day 12
Chapter 6 Revision
Exercises 24 to 27
Day 13
Chapter 6 Revision
Exercises 28 to 30
Day 14
Chapter 6 Revision
Exercises 31,
Day 15
Chapter 6 Revision
Questions for Short Answer: 1 to 11
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web sites
lecture notes
http://plasma4.sr.unh.edu/ng/phys407/phys407-6-27-05.pdf
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JEE question 2007 paper I
STATEMENT-1
A block of mass m starts moving on a rough horizontal surface with a velocity v. It stops due to friction between the block and the surface after moving through a certain distance. The surface is now tilted to an angle of 30 degrees with the horizontal and the same block is made to go up on the surface with the same initial velocity v. The decrease in the mechanical energy in the second situation is smaller than that in the first situation.
because
STATEMENT-2
The coefficient of friction between the block and the surface decreases with the increase in the angle of inclination.
(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
(B) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C) Statement-1 is True, Statement-2 is False
(D) Statement-1 is False, Statement-2 is True
Correct choice: (C)
Coefficient of friction doesn’t depend on the angle of inclination of the plane.
----------------------------------------
Static and dynamic friction;
----
Sections of the chapter
6.1 Friction as the component of contact force
6.2 Kinetic friction
6.3 Static friction
6.4 Laws of friction
6.5 Understandng friction at atomic level
6.6 A Laboratory method to measure friction coefficient
--------
Study Plan
Day 1
6.1 Friction as the component of contact force
Example 6.1
6.2 Kinetic friction
Example 6.2
Day 2
6.3 Static friction
Ex. 6.3
W.O.E. 1,2,3,4
Day 3
6.4 Laws of friction
W.O.E. 5 to 8
Day 4
6.5 Understandng friction at atomic level
6.6 A Laboratory method to measure friction coefficient
Ex. 6.4
W.O.E. 9,10
Day 5
Chapter 6
Objective I
Day 6
Chapter 6
Objective II
Day 7
Chapter 6
Exercises 1 to 5
Day 8
Chapter 6
Exercises 6 to 10
Day 9
Chapter 6
Exercises 11 to 15
Day 10
Chapter 6
Exercises 16 to 20
Revision Period
Day 11
Chapter 6 Revision
Exercises 21 to 23
Day 12
Chapter 6 Revision
Exercises 24 to 27
Day 13
Chapter 6 Revision
Exercises 28 to 30
Day 14
Chapter 6 Revision
Exercises 31,
Day 15
Chapter 6 Revision
Questions for Short Answer: 1 to 11
-----------
web sites
lecture notes
http://plasma4.sr.unh.edu/ng/phys407/phys407-6-27-05.pdf
----------------
JEE question 2007 paper I
STATEMENT-1
A block of mass m starts moving on a rough horizontal surface with a velocity v. It stops due to friction between the block and the surface after moving through a certain distance. The surface is now tilted to an angle of 30 degrees with the horizontal and the same block is made to go up on the surface with the same initial velocity v. The decrease in the mechanical energy in the second situation is smaller than that in the first situation.
because
STATEMENT-2
The coefficient of friction between the block and the surface decreases with the increase in the angle of inclination.
(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
(B) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C) Statement-1 is True, Statement-2 is False
(D) Statement-1 is False, Statement-2 is True
Correct choice: (C)
Coefficient of friction doesn’t depend on the angle of inclination of the plane.
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