The period of a spring oscillator which vibrates in the vertical direction is t The period of a spring oscillator vibrating in the vertical direction is t. when the oscillator moves upward from the equilibrium position o, another small ball on the same horizontal line with the equilibrium position o just starts to throw upward at the speed vo. When VO is large, the oscillator and the small ball pass through the equilibrium position at the same time?

The period of a spring oscillator which vibrates in the vertical direction is t The period of a spring oscillator vibrating in the vertical direction is t. when the oscillator moves upward from the equilibrium position o, another small ball on the same horizontal line with the equilibrium position o just starts to throw upward at the speed vo. When VO is large, the oscillator and the small ball pass through the equilibrium position at the same time?

When VO starts to throw up, it takes t = 2VO / g to return to its original position
It takes 0.5T for the oscillator to go up from O to o, or it may be that it returns to o after n times of simple harmonic vibration, then t = NT + 0.5T
And then two T-series and an equation