Answer:
Explanation:
By using the Newton second law and the position equation for a simple harmonic motion we have

where a is the acceleration, w is the angular frecuency and \phi is the phase constant. We can calculate w from the equation for the maximum acceleration

(a).

(b). 
(c). 
(d). The mecanical energy is the kinetic energy when the velocity is a maximum

Answer:
Ball A will.
Explanation:
Ball B has a higher mass that means that ball A will have more density.
To find the kinetic energy . You have to use this equation : 1/2m(v^2) .
I think the answer is B 1:100