How would i solve this question? I don't want answers just help setting it up!
The Empire State is 381 m tall while the Washington Monument is only 169 m tall
If a penny were dropped from top of both at the same time, assuming free fall, what would be the difference in time in their reaching the ground?

Question

How would i solve this question? I don't want answers just help setting it up!
The Empire State is 381 m tall while the Washington Monument is only 169 m tall 
If a penny were dropped from top of both at the same time, assuming free fall, what would be the difference in time in their reaching the ground?

theeric · Answer

Do you know a general kinematic equation that can help?
There's one that describes the position using initial position, velocity, and constant acceleration! (there's time involved, too)

espex · Answer

If you are ignoring drag, you could set it up as a simple $X_f = X_0 + V_{0}t + \frac{1}{2}at^2$ and solve for t in each case.