Recent content by TjGrinnell

I think I got it after some more pondering, brain is fried after trying to study for all these online finals. Thank you for the reply though.

Would Total Kinetic Energy be 0.634+0.254+0.25=1.14J? And what about the velocities afterwards, 1.14=1/2(.75)vAf2+1/2(.3)vBf2 how do I go about splitting up this equation so solve for each variable?

So would the conservation equation look something like this? KE(Ai)+KE(Bi)+W=KE(Af)+KE(Bf). I am especially bad at doing these since the book uses different symbols than what we started to use in class, and I have never been able to fully grasp how to set them up.

Ever since the switch to online learning, I have been having trouble with understanding the topics right out of the book. And so I am just not sure if I am ever doing anything right in physics. So far I have calculated the KE of both carts KE(A)=0.634 J and KE(B)=0.254 J. I am unsure how exactly...

I see, I really appreciate the help.

Ok... I was definitely trying to over complicate this. So to get the mass of the spring I would just have to solve for m and subtract the .250 kg mass, is this right? 1.15=2pi*sqrt(m/10)

I can easily do the second problem if only I knew the answer to the first. I am just not sure how I would go about figuring out if the spring has mass or not. And if it does, how would I calculate that mass?

I just have a question on the problem itself. If I am putting the satellite into orbit 450,000 m above the surface, then would r=6,371,000 m(earth's radius)+450,000 m? And what mass of Earth should I be using, in kg of course.

I did forget to angle gravity as I did in the 20kg diagram, but even after fixing this I am not sure what formula to use in order to calculate the forces of the tension for either string. If you could even just give a hint that would be very helpful.