Question

Class Management Help Esergy Begin Date: 105/2016 12:0000 AM -Due Date: 10/20/2017 8 00 00 AM End Date: 12/15/2017 11-59:00 PM (5%) Problem 9: The force required to compress a non-standard spring varies as the spring is compressed, as shown by the plot of force vs displacement in the figure The distances in the figure are x 15cm, x2 = 45 ㎝ -55 , and x4- 0 Xi Ctheespertta.com ψ 25% Part (a) write an cquation, ta terms of de varables in the problem statement, for the amount of work required to compress the spring from the engin to 25% Part (b) Calculate the work done, m joules, onthe spring as it is compressed from the ongn to port 4 Pon sta 92% Atenpt atan) acotansinho cosho tan cotanho Degrees O Radians detailed v BACKIPACE CLEAR CLEAR Feedback: _ dedunca perkedbac ▲ 25% Part (c) write as, equation, un terms of the anables in the problem statement, for the armount of woek required to compress the ム25% Part (d) Calculate dr work done. oules, on the spring ins compressed Som the point ri to the pont n spring from x 0 x 纽-。

Answer 1

& the work done is giving by the area W = 1 F 1 . Xx + 1 FZ (Xu -X2) (0.45) + f(-45)(0.95 - 0.45) 2 W=24.75 II © from Xe to xa W = 1 F (X2-X) + 1 F2 (X x X2) W=f(150)(0.45 - 065) + }(+45)(0.55-0.45) W = 20.25 Ji