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Unformatted text preview: Assume that the forcing has the form F = F0 cos 3t. Find the steady state solution when the system is driven by this forcing. d Now assume that the forcing has the general form F = F0 cos !t: Plot the ampli cation factor versus frequency, as in Figure 319 in Greenwood. Note: you will only have one curve, for the damping ratio in this system. What is the resonant frequency !r ? 2. A soccer ball is kicked towards the goal from 60ft: It strikes the top of the 8ft goal at the highest point of its trajectory. Fi...
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This document was uploaded on 04/25/2011.
 Spring '09

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