Tag Archives: mechanics

Vector Questions

This page contains Vector questions for B.Sc. first year mechanics. You can also practice these questions if you are appearing for any after B.Sc. entrance exams(ex. IIT JAM) for pursuing M.Sc. Question 1 Define direction cosines of a vector. If  , , and , , are the direction cosines of two vectors show that the angle between them is given by . Question 2 If … Continue reading Vector Questions »

Introduction to mechanics

So, what is mechanics? Mechanics we can say is an exact science. Again the question is what do I mean by an exact science. When we say that the physics or any branch of it is an exact science by this we mean that , its laws are expressed in the from of mathematical equations which describe and predict the results of precise quantitative measurements.

Mechanics Berkeley physics course volume 1 Review

This book review is about the book “Mechanics Berkeley physics course volume 1” The Berkeley Physics Course is a series of physics textbooks written mostly by UC Berkeley professors. The series consists of the following five volumes, each of which was originally used over the course of one semester at Berkeley: 1. Mechanics by Charles Kittel, et al.[1] 2. Electricity and Magnetism by Edward M. … Continue reading Mechanics Berkeley physics course volume 1 Review »

Spherical Polar co-ordinates

This article is about Spherical Polar co-ordinates and is aimed for First year physics students and also for those appearing for exams like JAM/GATE etc.
The spherical polar coordinates represent the coordinates of points on the surface of a sphere in a co-variant form. The coordinates of the point P in this system is represented by the radial vector r which is the distance from the origin to the point, the polar or

Center of mass : Dynamics of system of particles

This article is about Center of mass and is for B.Sc. first year students of most of Indian universities. This topic comes under subject Mechanics taught in Ist year UG or B.Sc. classes.

What is center of mass?

Let us consider a body consisting of large number of particles whose mass is equal to the total mass of all the particles. When such a body is having translational motion then displacement is produced in each and every particle.
The center of mass of a body is defined as the point where whole mass of the system can be supposed to be concentrated.