Momentum: Definition,unit,formula and Uses in real life:Class 9 CBSE - Future Study Point

Momentum: Definition,unit,formula and Uses in real life:Class 9 CBSE

Momentum: Definitions,units,formula and Uses in real life:Class 9 CBSE

Momentum:Definition,unit,formula and Uses in real life:Class 9 CBSE

Momentum: Definitions,units,formula and Uses in real life:Class 9 CBSE

The word momentum you would have heard many times in the sports news or commentary ,as an example the cricket team  chennai super king(an IPL team)  has gained its momentum or in a day to day time if a students progress continuously then we say ,this student has got a momentum in his or her intelligence. In all these example everywhere there is a move of an individual or entity ,therefore momentum involves a move(velocity) and mass(individual or entity),scientifically we define momentum as a product of the mass and the velocity.

Momentum: Definition,unit,formula and Uses in real life:Class 9 CBSE

Table of content

(i)Definition of momentum
(ii)Formula of momentum
(iii)Unit of the momentum
(iv)Conservation of the momentum
(v)Application of the momentum
(vi)Questions based on the momentum

Definition of momentum:

Momentum is the product of velocity and the mass, velocity is a vector quantity and mass is the scaler quantity therefore Momentum is the vector quantity.Momentum is represented by small case English letter p or large case English letter P.

Formula of momentum:

Formula for Momentum is as follows

P = mv

Where P is the Momentum,v is the velocity of a moving object and m is the mass of the object

Unit of the momentum:

SI Unit of the momentum = SI unit of the mass× SI unit of the velocity

Unit of the momentum = Kilogram × Meter/Second =Kg.ms-1

Conservation of the momentum:

The initial momentum of a system is equal to the final momentum or in other words,the net momentum of a system is zero.

Let in a system two objects colloids to each other which are of the mass m1 and m2 and are moving with velocities u1 and urespectively and after collission their velocities changes to v1 and v

Let initial

Initial momentum =Final momentum

P1 =P2

m1 u1 +m2 u2 = m1 v1 +m2 v2

Or

m1 u1 +m2 u2 – m1 v1 -m2 v2 =0

Application of the momentum in real life

When a ball thrown by us on the wall ,it colloides with the wall with a particular velocity it is reflected back by the wall by a same velocity that follows conservation of the momentum.

A cricketer catch the ball by moving his both hands in back ward direction for maintaining the conservation of the momentum so that ball could not be bounces from his hand.

 Questions based on the momentum:

Click here :Questions based on the momentum

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Class 9 Biology Important Notes

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E-books of physics,chemistry,biology ,maths and solutions of class 10 previous year’s question papers(click the link)

Class 9 Science previous years Question papers with solutions and important questions and answers

CBSE Class 9-Question paper of science 2020 with solutions

CBSE Class 9-Sample paper of science

CBSE Class 9-Unsolved question paper of science 2019

Click the link for NCERT Solutions for classes 9,10,11 and 12 of Maths & Science

NCERT Solutions and CBSE notes for Class 9,10,11 and 12 of Maths and Science

NCERT Solutions of Class 9 Science : Chapter 1 to Chapter 15

NCERT Solutions of Class 9 Maths : from chapter 1 to 15

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NEET Syllabus and its preparation

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NCERT Solutions of class 9 science 

Chapter 1-Matter in our surroundingsChapter 9- Force and laws of motion
Chapter 2-Is matter around us pure?Chapter 10- Gravitation
Chapter3- Atoms and MoleculesChapter 11- Work and Energy
Chapter 4-Structure of the AtomChapter 12- Sound
Chapter 5-Fundamental unit of lifeChapter 13-Why do we fall ill ?
Chapter 6- TissuesChapter 14- Natural Resources
Chapter 7- Diversity in living organismChapter 15-Improvement in food resources
Chapter 8- MotionLast years question papers & sample papers

 

 

 

 

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