Recent content by rahaverhma

Is it true that in any mechanical set-up, it is possible to predict the nature of Normal Reaction ( magnitude, direction, etc. ) without solving through the dynamical equations of motion and constraints for the set-up as Normal Reaction is completely unknown? I mean is it true that we can...

Is it wrong to break the free rigid body dynamics into pure translation and pure rotation parts? The COM has only linear acceleration, not any acceleration due to torque of force, it means as other particles on the rigid body has angular acceleration, alpha = F*r/I . ( F : external force, r ...

The free rigid body is said to rotate about COM, here, all the frames other than COM are non-inertial as they have tangential acceleration produced by the torque of external force. Only COM is an inertial one. We need to subtract acceleration of such frames vectorially from the acceleration of...

Why a free rigid body with mass m, when applied with an external force F, translates with center of mass and all particles of body having same linear acceleration = F/m, but it always rotates only about its center of mass, but not about some any other point on the body? And, thus if the line of...

👍I understood it. One thing more though, what is meaning of an "appropriate frame" as mentioned in the passage ?

The time dilation result derived is a bit strange, no doubt, but there doesn’t seem to be anything downright incorrect about it until we look at the situation from A’s point of view. A sees B flying by at a speed v in the other direction. The ground is no more fundamental than a train, so the...

The time dilation experiment involves two frames in relative motion, let one at ground and other at train with velocity V. The light clock runs faster in rest frame, as seen by an observer A at rest in train ( just beside clock ) than that observed by an observer B in ground frame which observes...

I didn't quite understand. Can you please elaborate it ?

No. Explain it just conceptually without any mathematics. And one thing more please explain it both ways, with and without including CoM.

How does a polygon shaped body's toppling shifts from one edge to next adjacent edge when the object is already in motion without any sliding and no external force is applied ? Explain it with the case of hexagon or octagon both ways, with and without including CoM.

I'm a physics graduate from Delhi University, India. Aspirant of Theoretical Physicist . Right now , cleared Clerk in Govt. of India exam. About to get Job. I want to go for some top notch college in USA/Europe for Graduate physics. But also interested in Computer Software Engineering. Want to...

Hi everyone , I have done Bachelor's in Physics from Delhi University , India . I discontinued Master's from Indian Institute of Technology more-than-1 year before completion , it was 2 year course. I want to do research in Physics independently and publish ground-breaking...

Thank You , Sir. Thank you , Sir.

Dear Sir , actually I studied all courses from Classical Physics to Modern Physics. But , as you know as time passes , we try to get more refined and deep thinking over the matter , for example , force is equal to the rate of change of momentum w.r.t time. Then how Newton came to this , has not...

I have completed Bachelors in Physics from Delhi University. So, i know the mathematics concerning physics from Bachelor's course and also pure mathematics till class 12th.