# Search results

1. ### Another conservation of energy problem(I think)

I guess I'm having issues with trying to calculate the potential energy at point c since I wont have the value of y or v. The only thing I can think of is using the conservation of momentum which then I can say that the mass going from point b to c would yield v1=v2. Is it correct to assume that?
2. ### Need help setting up the problem.

Hello tiny-tim! I suppose exact calculations would help. Sorry about that. :wink: Spring displacement calculations: x1 = 8-1 = 7 meters x2 = √(22+62) -1 = 5.32 meters And of course the -1 in each is due to the springs unstretched length of 1 meter. Spring Uel Calculations: Uel1=...
3. ### Another conservation of energy problem(I think)

So I have another problem that I'm having some issues with. Homework Statement A ball attached to a massless rope is allowed to swing around a circle of radius r=0.8m. When the ball reaches point B, the horizontal rope hits the peg P causing the ball to swing around a smaller circle...
4. ### Need help setting up the problem.

Excellent! Thank you tiny-tim! I worked this out using the formula: K1+U1=K2+U2 where U= mgy+1/2kx2 Crunching the numbers I get : 0+1205.4=K2+778.05 427.35=K2 427.35=1/2(6)v2 then finally: v=11.935m/s Does this seem like the right path?
5. ### Need help setting up the problem.

Hello, I was looking to get some help with setting up this problem so I may solve it. For some reason I just don't see what to do to work towards a solution. Homework Statement A 6kg collar is allowed to slide over a frictionless pole whose height above the ground obeys the parabolic equation...