What is the earliest time at which the oscillator shown

Last updated: 5/9/2023

What is the earliest time at which the oscillator shown below is stationary E t 1 35 s A B C D t 0 0 s t 0 30 s t 0 45 s t 0 90 s 0 10 m 0 0 10 m Unit s F t 1 80 s w0