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1. ### Mass of a rubber stopper being swung in a horizontal circle

ahh, of course that mass makes no sense. The equation should be more like ##\frac{1}{0.2555555555}=\frac{1.962}{4\pi^2 m}## I forgot that the slope is really ##\frac{0.2555555555s^2}{1m}## Now I can manipulate the equations: ##m=\frac{(1.962)(0.2555555555)}{4\pi^2}## so the mass of the...
2. ### Mass of a rubber stopper being swung in a horizontal circle

So, in your equations, W is the force of gravity on the hanging weight, which is also the centripetal force on the stopper? I was, in fact, given the mass of the hanging weight, 200g In that case, 0.200kg x 9.81m/s2 = 1.962N Now 1.962N is my Fg and also Fc, I can put it in this as W in...
3. ### Mass of a rubber stopper being swung in a horizontal circle

Homework Statement Homework Statement [/b] The purpose of this lab is to determine the mass of a rubber stopper being swung in a horizontal circle. I made an apparatus that resembles the picture attached, with a string (with a rubber stopper on one end, and a weight on the other end) put...