question_answer

A parabolic pulse given by equation\[y(in\text{ }cm)=0.3-0.1{{\left( x-5t \right)}^{2}}\left( y\ge 0 \right)x\] in meter and t in second travelling in a uniform string. The pulse passes through a boundary beyond which its velocity becomes 2.5 m/s. What will be the amplitude of pulse in mm in this medium after transmission.

Answer:

2.00