Recent content by Hindi

Thanks for the reply StephenPrivitera. I am just wondering why you made m_2v_2f negative in the first equation?? Should it be the other way around?

Hi all, I came across a problem on collisions on one of my professors old exams. The problem is: http://home.comcast.net/~msharma15/problem_2.jpg The way I am trying to approach it is by applying the conservation of linear momentum and energy, but the problem is that I still get left...

Thanks everyone...eventually solved it! Pretty easy after thinking about it. Doc...yea it was 1m. Sorry about that! Anyone interested in the solution, you can find it here: http://home.comcast.net/~msharma15/problem_1.jpg

I believe the mass doesn't matter in this problem because the coaster is under constant acceleration for the whole run (gravity).

Hi all again. Now the question wants me the find the TOTAL kinetic energy of the sphere. I keep on trying to figure this out, but I keep getting 10J, while the answer is 6J. I f anyone can point what I am doing wrong, it would be greatly appreciated! ------------------------- I found...

Hey thanks deltabourne. You gave me the answer to the missing piece of the puzzle! Found the answer to be 8.0J joules, which is correct!

Yep...answer looks right to me.

Doc Al, Thanks for the reply. One of the biggest problems I was having with finding the mass was finding the rotational inertia of a hollow sphere. In my book (Fundamentals of Physics 6th Edition), it only gives the rotational inertia of a solid sphere. I know the rotational inertia for...

Hi all, I just had a question on a homework problem I was attempting, but can't find the correct solution for it yet. The answer is in the back of the book, but I wanted to know how it is derived. Anyways, here is the question: A hollow sphere of radius .15 with I=.040 rolls without...