CHAPTER 2
FORCE AND MOTION
momentum
CONCEPT OF MOMENTUM
TOTAL MOMENTUMBEFORE COLLISION=TOTAL MOMENTUMAFTER COLLISION
- VE (VELOCITY)
+ VE (VELOCITY)
MOTION PRINCIPLE
--
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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