The second law is also known as \(F=ma\) where \(F\) is the total force acting on mass \(m\), and \(a\) is the acceleration of the mass. Hint: If the force acts over half the length of the guitar, say...The second law is also known as \(F=ma\) where \(F\) is the total force acting on mass \(m\), and \(a\) is the acceleration of the mass. Hint: If the force acts over half the length of the guitar, say \(0.20\text{ m}\) the final velocity will be \(v=\sqrt{2ax}\) where \(a\) is the acceleration and \(x\) is the distance traveled.
