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?
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=...
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...
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?
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...