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Newton’s Third Law of motion (action-reaction and examples)

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This article is about in-depth explanation of newton’s third law of motion. Here in this article I presume that you have a introduction of Newtons first law of motion and Newton’s second law of motion. Now Newtons first law and second law of motion deals with the effect of forces when they acts on a body. First law is about the change in the velocity of the body on the application of unbalanced forces and second law is gives the exact amount of the force needed to produce a given acceleration.

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Circular Motion Physics : Detailed explanation

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Circular motion is a very important concept in physics. Here in this page I would like to go through the concept of circular motion. You encounter circular motion in your day to day life. Many rides in amusement parks undergoes circular motion. Curves on highway are part of a circle and cars making a tun undergoes circular motion. Merry-go-Rounds in playgrounds offer further examples of uniform circular motion. Now let us learn more about circular motion.

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CBSE class 10 probability Important questions

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1)What is the probability of getting 53 Thursday in a year ?
2)What is probability of getting 53 Mondays in a leap year ?
3)What is the probability that two people have same birthday ?
4)What is the probability that two people have different birthday ?
5)If a card is drawn from a well suffeled deck of 52 cards then what is the probability of getting a face card ?
6)If probability of happening of an event is 0.39. what wiil be probability of not

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How to solve resistor in series problems

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Here in this article we will go through a easy problem showing the basics how to solve the problems where resistors are connected in series and you have to find the equivalent resistance of the circuit. we will do this through an example . For this consider studying the question given below and how I solve this question following several steps. Here our goal will be to analyze few resistors connected in series combination. Further If you want to read the notes related to this topic please follow this link

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NCERT book Solutions class-9 Gravitation (Part 2)

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This page contains NCERT book Solutions class -9 Gravitation starting from page 143 at the end of the chapter. I have also been writing the notes for this chapter to learn more about notes you can follow this link and to get the in-text questions solution please follow this link . If you want to get the solutions of first 11 questions follow this link.
For assignment on gravitation follow this link

Question 12
Gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in newtons of a 10 kg object on the moon and on the earth?

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How to solve Motion Problems of 9th Class

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The Motion problem in Class 9 are limited to Straight line motion with either no acceleration or constant acceleration.

This article is given to give the feel of the whole chapters plus the type of questions and ways to tackle them.

This is quite beneficial for anybody studying Motion for class 9.

Complete Study material has been provided at the below link Study Material

First we need to remember these important terms

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NCERT book Solutions class-9 Gravitation (Part 1)

2 Comments / General, NCERT Solutions /

This page contains NCERT book Solutions class -9 Gravitation starting from page 143 at the end of the chapter. I have also been writing the notes for this chapter to learn more about notes you can follow this link and to get the in-text questions solution please follow this link

Question 1

How does the force of gravitation between two objects change when the distance between them is reduced to half ?

Answer

According to Universal Law of gravitation , the gravitational force of attrection between any two objects of mass

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NCERT book Solutions class-9 Gravitation (In Text Questions)

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These are NCERT solutions for class-9 chapter named Gravitation. Questions in this page are those questions that occur in between the texts at the end of each concept.and I have given the page number so you can find them easily in your book.
Page 134
Question 1
State the Universal law gravitation?
Answer
According to Universal Law of Gravitation every object in universe attracts every other object with a force known as Gravitational force.
It states that

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