Recent content by Manish_529

Also, how do we measure the strength and flux of this field? Like in the usual gravitational/electric fields, we get the strength by dividing the force of the field by a scalar quantity like mass/charge, depending on the field. And secondly, can this field exist independently, like a...

Please correct me if I am wrong. In the real world, aren't all the solid bodies elastic or show deformations, and it's only due to the rigid body approximation that we neglect the deformations of a body in classical mechanics?

Thanks!

Thanks!

Actually you also need to consider the tension force since, it's vertical component is performing work. I have posted the solution in one of my replies you can check it`

Here you have considered T_y to be equal to mg, but it's not, because if that had been the case, then the vertical ascent of the bead wouldn't have happened

yes but the exernal forces acting is variable and depends on y

The limit shall be from h to h/2 because while calculating the work done by variable forces, we perform a line integral as the limit goes from the bodies initial position to the final position and not it's displacement

Here, we can assume that the radius and velocity of the circular path remain same because, in the question it has mentioned that only the depth of the circular path has decreased and nothing such about the circular path changing has been mentioned.

Since contact forces are a manifestation of fundamental electromagnetic interactions at a macroscopic scale. They should possess a field whose effect is so small for regular bodies that are not in contact that it can be neglected? But when the bodies come in contact, this force cannot be neglected?

so, for a hanging chain what will be it's potential energy, and how do we define potential energies for such scenarios

The difference in potential energy of a body is equal to the work done by conservative forces on it

It's actually the first one how can two points have different potential energies in a force field if no work is being done by that force

but then how is the potential energy of the chain varying if there is no work being done by the gravity?

Oh i get it work is done by a force when a body change's it's position with the passage of time which in turn changes the P.E with the position because the body's position was changed. Am I right?