For the first problem, we use the equation:
.5mv^2 + .5Iw^2 + mgh
right?
I set it up as (Mechanical energy initial = Mechanical energy final)
and I was wondering if this is the right way to set it up. For some reason, I can't get the right answer.
Please help me with these problems:
1) In a circus performance, a large 4.0 kg hoop with a radius of 2.0 m rolls without slipping. If the hoop is given an angeular speed of 6.0 rad/s while rolling on the horizontal and is allowed to roll up a ramp inclined at 15 degrees with the horizontal...
1) If you go to this site it has the question already set up. the one I need help on is question number 62, the picture frame one. I know that the answers are already given but I want to know how this is set up.
http://www.phys.uvic.ca/vannetten/phys102/Assignments/t1a9p.pdf
2) A uniform...