Get Help with Homework: Tips and Answers from Experts | Kine002.pdf

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A user requested help with homework related to physics, specifically seeking explanations or answers. The discussion quickly escalated with frustrations over thread management and communication issues, leading to some harsh exchanges. One participant clarified the concept of velocity, explaining it as distance over time, which was intended to assist the original poster. The conversation shifted to advice on using forums effectively, emphasizing patience and avoiding private messages for help. Overall, the thread highlights the challenges of seeking academic assistance in an online community.
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hey everyone, i need a little help with some homework. just an explanation or a few of the answers please...

http://cwx.prenhall.com/bookbind/pubbooks/giancoli3/medialib/rt/pdf/kine002.pdf" I AM NOT A BOT... >.>
 
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If you are not a bot, you can post it in the forums.
 
Dick said:
If you are not a bot, you can post it in the forums.

it was moved here dumbass and close this thread please... i figured this crap out, you guys suck..
 
MagicMan123 said:
it was moved here dumbass and close this thread please... i figured this crap out, you guys suck..

Ouch. Sorry about that. I was responding to the PM not the post and got confused. People often ask for help through PM, and that's not a good idea. Apologies. If it's any help velocity is distance over time. So balls that have large differences in position in the last time step have large velocities. Small differences, small velocities.
 
Dick said:
Ouch. Sorry about that. I was responding to the PM not the post and got confused. People often ask for help through PM, and that's not a good idea. Apologies. If it's any help velocity is distance over time. So balls that have large differences in position in the last time step have large velocities. Small differences, small velocities.

ahh that was harsh.. my bad man, thanks though lol... i kinda know the velocity formula lol.. i got that crap though, was pretty hardcore cause its my first year of physics and it was our first piece of homework.. followed the good old palmer saying 'If at first you don't succeed, try again'..
 
Good luck in the course and keep posting on the forums if you have problems. There's a lot people who want to help. Just don't believe them all. :) And don't PM, just be patient.
 
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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