## Position of a particle (Mechanics)

This article ” Position of a particle ” is for B.Sc. students. We have also defined inertial and non inertial frame of reference in this article. Position of a particle (a) By Position Vector:- The line joining the point P and the origin ‘O’ of the frame of reference that is $\vec{PO}$ is known as position vector and is also represented by $\vec{r}$. (b) By … Continue reading Position of a particle (Mechanics) »

## Newton’s laws of motion and applications

This article is about Newton’s laws of motion and applications for B.Sc first year students and is also applicable if you are preparing for exams like JAM , GATE, JEST , CSIR-NET etc. It comes under the subject Mechanics. If you like the content do help us by sharing it among your fellow students. Introduction Sir Isaac Newton expressed his ideas regarding the motion of … Continue reading Newton’s laws of motion and applications »

## 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  $l_1$, $m_1$, $n_1$ and $l_2$, $m_2$, $n_2$ are the direction cosines of two vectors show that the angle $\theta$ between them is given by \$cos\theta … 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.