A point on the string of a violin moves up and down in simple harmonic motion with an amplitude of 1.24 mm and frequency of 875 Hz. a) what is the max speed of that point in SI units? b) what is the max acceleration of the point in SI units?

a

b

Explanation:

From the question we are told that

   The amplitude is

   The frequency is  

Generally the maximum speed is mathematically represented as

=>        

=>        

Generally the maximum acceleration is mathematically represented as

=>      

=>      

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .