Problems with minimal information

[mrmlund]

An object dropped from the top of a cliff takes 1.80 s to hit the water below. What is the height of the cliff?



I do not know of any equation that would work as only one piece of information has been given



I could not even begin my calculations as I lacked information. Is it possible to solve this question?

 

[nasu]

You know the time, you know the acceleration (free fall), you know the initial velocity ("dropped" means vo=0). You can find the distance traveled.

 

[mrmlund]

Thanks!