A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. The time it takes for the ball to fall halfway to the ground is 4.36 s. Find the time it takes for the ball to fall from rest all the way to the ground.

Answer 1

I will be glad to critique your work.

Knowing that the distance fallen is proportional to t^2 should give you a very big hint.

You need to increase the time by a factor of sqrt2 = 1.414, at the half-way point.