Tuesday, July 8, 2014

Week 12 Dev's Diaries

One of the main changes we did to the mechanism was changing the material of the arm from cardboard/acrylic to a flexible plastic ruler. Firstly the ruler is much lighter and would require less energy to move, but would have a higher kinetic energy and such cause the can to move further (KE = 1/2*mass*velocity^2). Making use of the ruler's flexible properties, we intend to a pole before the ruler strikes the can, to build up energy in the ruler. This will increase its kinetic energy and also the chances of the can crossing the line. 

Below is how the mechanism will roughly look like:

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