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Here is the figure of the ring and the forces acting on it.
How would you find the net force acting on the ring?
I need help.

Picture url:
http://img415.imageshack.us/my.php?image=scanud4.jpg

2006-10-28 12:29:21 · 2 answers · asked by swimmertommy 1 in Science & Mathematics Physics

2 answers

The other guy got the forces confused. The true answer is:

sqrt(((64 + (128 * cos(30)) - 128)^2) + ((128 * sin(30))^2)) N = 133.987851 N

2006-10-28 12:40:23 · answer #1 · answered by turkeyphant 3 · 0 0

The horizontal forces resolve to -64N + 128cos30 = +46.851
The vertical force is 128sin30 = +64

So, the net force is root(46.851^2 + 64^2) = 79.316 N
at an angle above horizontal of
arctan (46.851/64) = 36.2 deg

2006-10-28 19:40:23 · answer #2 · answered by Steve 7 · 0 1

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