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.
