all the formulas in chater force and laws of motion class 9
Answers
1)MOMENTUM=MASS*VELOCITY
P=M*V
SI UNIT=Kg*M/S
CGS UNIT=G*Cm/S
2)FORCE=MASS*ACCELERATION
F=M*A
SI UNIT OF FORCE=NEWTON(N)
CGS UNIT OF FORCE=DYNE(D)
10^5Dyne=1Newton
1N=1KG*M/S
IMPORTANT
1)FIRST LAW OF MOTION
EVERY OBJECT CONTINUES IN IT'S STATE OF REST OR OF UNIFORM MOTION IN A STRAIGHT LINE UNLESS IT IS COMPELED TO CHANGE THAT STATE OF MOTION BY A FORCE.THIS TENDENCY IS CALLED INERTIA
MASS IS DIRECTLY PROPORTIONAL TO MASS OF BODY
2)SECOND LAW OF MOTION
THE RATE OF CHANGE OF MOMENTUM IS DIRECTLY PROPORTIONAL TO THE APPLIED FORCE AND IT TAKES PLACE IN THE DIRECTION OF FORCE
3)THIRD LAW OF MOTION
EVERY ACTION HAS A EQUAL AND OPPOSITE REACTION
CONSERVATION OF MOMENTUM
THE TOTAL MOMENTUM IS CONSERVED IF NO FORCE IS INVOLVED
TOTAL INITIAL MOMENTUM=TOTAL FINAL MOMENTUM