How Do I Solve This Rotational Motion Problem?

AI Thread Summary
The discussion revolves around a rotational motion problem that a user seeks help with, providing links to the problem and their attempt at a solution. Participants express appreciation for the effort and engage in light banter, while also pointing out a mistake in the user's calculations regarding mass. The user acknowledges the error and thanks the contributors for their assistance. The conversation highlights the collaborative nature of problem-solving in physics. Overall, the thread emphasizes the importance of peer support in tackling complex academic challenges.
coldblood
Messages
133
Reaction score
0
Hi friends,
Please help me in solving this problem, I'll appreciate the help.

The problem is as:

https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1470353_1461727604054345_1173881292_n.jpg

Attempt -

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn2/q71/s720x720/1487447_1461727740720998_1698365428_n.jpg


Thank you all in advance.
 
Physics news on Phys.org
hi coldblood! :wink:

very good! :smile:

but your m is … ? :rolleyes:
 
  • Like
Likes 1 person
tiny-tim said:
hi coldblood! :wink:

very good! :smile:

but your m is … ? :rolleyes:

Oh man, I think I would be solving this with unconscious mind. Sorry for that mistake and thanks a lot.
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top