A piano string of length L is fixed at both ends. The string has a linear density P and is under tension r. At time t= 0, the string is pulled a distance s from equilibrium position at its mid-point so that it forms an isosceles triangle and is then released (s

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.