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
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.
B.Sc. Physics and B.Sc. (Hons.) in Physics (Bachelor of Science in Physics) In this article learn about B.Sc. Physics course. Giving information about this course seems natural as this website is all about providing notes and study material for B.Sc first, second and third year. So here in this article learn about this course and know what you are going to study in this course. … Continue reading Information about B.Sc. Physics and B.Sc. (Hons.) Physics
The motion of different bodies can be conveniently described if we imagine co-ordinate system attached to a rigid body and the positions of different bodies in space can be described w.r.t. it, then such co-ordinate system is called frame of reference.
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.
This lesson is about External and internal forces (Dynamics of system of particles) . This chapter comes under subject Mechanics and is for B.Sc. Physics students. While studying Newton’s laws of motion most of the time we have considered objects (for example planets, projectiles etc..) to be point particles rather then extended bodies. We did this because while dealing with problems like projectile motion or … Continue reading External and internal forces (Dynamics of system of particles)