CHAPTER 2

FORCE AND MOTION

momentum

CONCEPT OF MOMENTUM

TOTAL MOMENTUMBEFORE COLLISION=TOTAL MOMENTUMAFTER COLLISION

- VE (VELOCITY)

+ VE (VELOCITY)

MOTION PRINCIPLE

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CONCLUSION..

ELASTIC COLLISION

m1m2m2m1u1v2v1u2m1u1 + m2u2m1v1 + m2v2=

M1u1 + m2u2M1v1 + m2v2==229 + 2v==

m1m2m2m1u1u2vm1u1 + m2u2(m1 + m2)v=

M1u1 + m2u2==(m1 + m2)v=245v=

12

34

Handout

M1u1 + m2u2M1v1 + m2v2==2- 9 + 2v2==

==M1u1 + m2u2=(m1 + m2)v

EXPLOSION

CHANGE THE SHAPECHANGE ORIGINALSTATE???????????

EXP:A FORCE OF 10N ACTS ON ANOBJECT OF MASS 5KG ON A SMOOTH FLOOR. FIND ITS ACCELERATIONF=10Na= ?F = ma10 = 5aa = 2 ms-2

1

2

FIND THE TENSION AND THEACCELERATION1

WTWT

FIND THE TENSION AND THEACCELERATION2LETSTRY

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