A uniform string of length `6.5 m` is subjected to a tension of `40 N`. Mass of the string is `162.5 g`. One end of the string is fixed and the other end is tied to a source (s). which produces a transverse oscillation. The displacement of the end of the string tied to the source can be expressed as `y = (3 mm) sin (40 pi t)`, where ‘t’ is time. Find the displacement of point P of the string at a distance of `3.75 m` from the fixed end, at time `t = 0.3 s`.