Ryan Graham Engineering Fundamentals 151-C1 April 28, 2010. Team Scrapyard. Jonathan Calvin James Moon Jimmy Bogosian Shivam Zaveri. Device Design Overview.
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Our device starts with a ball inside a cup being balanced about an axis. A force will be applied to the cup causing the cup to tip over. The ball will fall out of the cup onto a ramp. As the ball finishes down the ramp, it will fall into another cup that will initiate a pulley system. The pulley system, which is attached to the desk lamp, will turn the switch, thus turning on the light.
mgh= 1/2mv^2 + 1/2Iw^2
mbvb + mcvc = (mb + mc) v’
s2 = (1/2)at^2+v0t+s0
F = ma
F = ma
t = F*r*sin(theta)