Question

Please let it be legible, thanks in advance!

Review constants I Porodic Table The elastic energy stored in your tendons can contribute up to 35 % of your energy needs when running. Sports scientists have studied the change in length of the knee extensor tendon in sprinters and nonathletes. They find (on average) that the sprinters' tendons stretch 42 mm, while nonathletes' stretch only 33 mm Part A The spring constant for the tendon is the same for both groups, 32 N/mm. What is the difference in maximum stored energy between the sprinters and the nonathletes? Express your answer in joules. | ΑΣφ ? AE Submit Previous Answers Request Answer

Answer 1

Spring 32 N/mm constant for tendom 32x103 N/m к In case of sprinters, Maximum stretch A = 42 mm = 42x103 m Emani / KA² * 32x103 x 42X42X10 2 E = 28. 224 J In case of non, atheletes, Maximum stretch, A₂ = 33 mm 33x10-3 E 11 KA₂² 2 I x 32 x 10 103 x 33 x 33 x 10 E2 - 17. 424 J Difference, DES E,-E, 28.224 17.424 DE = 10.8 J