## Tuesday, October 23, 2007

### Study guide H C Verma JEE Physics Ch. 9 CENTRE OF MASS, LINEAR MOMENTUM AND MASS

Centre of mass and its motion;
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Sections of the chapter
1. Centre of mass
2. Centre of mass og continuous bodies
3. Motion of the Centre of mass

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Study Plan

Day 1

1. Centre of mass

Ex. 9.1, 9.2
2. Centre of mass of continuous bodies
Worked out examples (WOE): 1 to 3

Day 2
3. Motion of the Centre of mass
Ex. 9.3
4. Linear momentum and its conservation principle
5. Rocket propulsion

Day 3
WOE 4,5,6,7,8
Exercises 1 to 5

Day 4

6. Collision
Ex. 9.4
7. Elastic collision in one dimension
WOE 9 to 12

Day 5
8. Perfectly inelastic collision in one dimension
Ex. 9.5
9. Coefficient of restitution
10. Elastic collision in two dimensions
11. Impulse and impulsive force
WOE 13 to 14

Day 6
Objective I 1ot 19

Day 7
Objective II 1 to 11

Day 8
WOE 15 to 20
Exercises 6 to 10

Day 9
WOE 21 to 24
Exercises 11 to 15

Day 10
Exercises 16 to 25
Revison Period

Day 11
Exercises 26 to 30

Day 12
Exercises 31 to 35

Day 13
Exercises 36 to 40

Day 14
Exercises 41 to 45

Day 15
Exercises 46 to 50

Day 16
Exercises 51 to 55

Day 17
Exercises 56 to 60

Day 18
Exercises 61 to 64

Day 19
Questions for Short Answer 1 to 12

Day 20
Questions for Short Answer 13 to 25

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Audio visual lecture

Center of Mass
www.curriki.org/nroc/Introductory_Physics_1/lesson11/Container.html

Impulse and Momentum
www.curriki.org/nroc/Introductory_Physics_1/lesson12/Container.html

Conservation of Linear Momentum, Collisions
www.curriki.org/nroc/Introductory_Physics_1/lesson13/Container.html

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JEE question 2007 paper I

STATEMENT-1

In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before
the collision

because

STATEMENT-2

In an elastic collision, the linear momentum of the system is conserved

(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: (B)
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