Hello!
Here we can use t=sqrt(2d/g)
So t=sqrt(2000m/9.80m/s^2)=14.3s
This came from the kinematic equation x2=x1+v1*t+1/2at^2
I rearranged for time and dropped the v1t term as there was no initial velocity.
Hope this helps. Any questions please feel free to ask. Thank you!!
