Recent content by NANDHU001

Thanks, for pointing out the mistake, it was actually diameter I had in mind while using radius. But still I can't imagine how the ball should move outwards. I'll put the question in a different manner. Suppose the ball was fixed to the groove during the course of rotation, all of a sudden the...

Will a ball placed tightly (radius of ball=width of groove) in a groove(length of grove along radius) on a rotating disk have any motion along the groove. The frictional force is zero.

Thanks, will there be any change in the rotational velocity of the rod after the event. If so, tell me how to calculate it.

Is it possible to derive ideas of angular momentum form linear momentum. Can linear momentum and calculus be used to derive ideas of angular momentum.

Please note the word 'placed' in my clarification of the question. What I have meant is that a ball of zero linear velocity is placed by an external agency such as a human being at a later time so that the rotating rod strikes it off and the rod thus comes to rest both translationally and...

Can moment of inertia be derived using just linear dynamics and calculus. Textbooks usually derive moment of inertia using energy equation and and analogy of 1/2mr^2w^2 with 1/2mv^2. I would like to know if it can be approached in a different manner using just linear dynamics.

Okay, I'll provide a slight clarification. The ball is placed so that it collides with the rod. I'll ask the question in a different manner. A rod is spinning around its center of mass with no linear velocity with respect to the observer. Is it possible for a ball (placed so that it collides...

Suppose a rod is rotating about its center of mass, for simplicity consider it to be its geometric center(uniform density). At an instant a rigid ball is introduced near the rod so that it collides with the rod and the stick comes to rest(rotationally and translationally). Then can the ball be...

I have read that the electric field from a point charge fall off as 1/(r*r) since it is analogous to variation of intensity of radation from source (whose geometric proof depends on solid-angle), similarily is there any geometric explanation why magnetic field in the stated case fall off as...

Any links to online info are also welcome.

Thanks, I am actually trying to program a 3d grid. And I wanted to know how to space the grid lines for a particular angle as input to mimic a 3d effect. Can you please attach a bmp image showing the ray diagrams to illustrate the change in object size with distance taking into account the...

Suppose I look at a series of steps as shown in the attached file. k is the horizontal shift per step and h the vertical shift per step. -> points to the vertical plane along which steps are projected perspectively. Then is the height of 'n'th step h'=(h*k)/(n*k)=h/n.

Is it correct to say l'=(10/(50+x))*50

Suppose a rod measures 10 cm in length at a distance of 50 cm from my eyes, what will it's length be when it is pushed further by x cm ?(that is at a distance of 'x+50'cm from my eyes) Please provide a mathematical expression with derivation involving: rod length-a distance-l new...

Thanks but please consider analyzing the thought experiment I have mentioned.