A 2.1 g spider is dangling at the end of a silk thread. You can make the spider bounce up and down on the thread by tapping lightly on his feet with a pencil. You soon discover that you can give the spider the largest amplitude on his little bungee cord if you tap at a frequency of 0.8 Hz. What is the spring constant of the silk thread? (answer to be in N/m) Certainly understanding the spring equation that states v = sqrt(k/m)*sqrt(A^2 - X^2) But how to apply it? I'm clueless. Help would be appreciated. Thanks.