[Paper and presentation] Mechanics in Computer

AI Thread Summary
The discussion centers on a group assignment to write a paper and create a presentation on mechanics, with a focus on selecting a specific topic. The chosen topic is rotational mechanics in CD-ROMs, and the poster seeks suggestions for additional resources such as articles, images, and videos. They mention using Google Images and YouTube for research. The poster is open to feedback on the topic's relevance and any other trending topics in mechanics research. Overall, the aim is to gather useful materials to enhance their project on rotational mechanics.
master cherundo
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Homework Statement


Hi guys!
I have pre-midterm assignment in group to write a paper an d a presentation on the screen about mechanics. My group gives me a job to decide more specific topic and to search the matter (articles, pictures, videos, etc.) also about that specific one.
Do you think our topic is good? Any other interesting or hot topic (due to the trend of mechanics research recently)?

Homework Equations


Equations would be essential in that paper: I think it would be such:
$ \theta=\theta_0+\omega_0t+ \frac{1}{2} \alpha^2$
or
$F=ma$

The Attempt at a Solution


Actually I have decide the specific topic is: rotational mechanics in CD-ROM, :wink:.
I have tried picture-googling to find a CD picture, and see http://en.wikipedia.org/wiki/CD-ROM" .
Youtube also would be very valuable in search of video.
What kind of other matters I was suggested to search? Where?
 
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Sorry, I don't see that I've made double thread. I don't mind if this thread would be deleted. :)
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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