Answer Happy

A string of length l and mass m fixed at both ends is struck by a mallet of width a about its center point. At the moment of impact the displacement y(x,0) = 0, but the velocity is given by a 2. vo (2) = So, (x - 1 / 1 12 V, 1x - I< a 2 The energy of the nth mode is Select one: 4mv2 n² 22 2 sin? 2 ηπα for even n and 0 for odd n 21 4mv2 sina nga for all n n²2 21 4mv2 cos2 na for odd n and 0 for even n 21 n²2
4m2 cos2 na for odd n and 0 for even n 4mu2 cos? Ta for even n and 0 for odd n 21 722-2 4mu? 72- sin? 2 na for odd n and 0 for even n 21 4mufor all n ma- 4mu? 2 nd for all n COS 21 11 2