Solve using integration by parts.

3 . The centre point of a perfectly elastic string stretched between two points A and B, 4 m apart, is deflected a distance 0.01 m from its position of rest perpendicular to AB and released initially with zero velocity. Apply the wave azu 1 2zu equation 2x2 C2 at2 where c = 10 to determine the subsequent motion of a point P distant x from A at time t