Posted by Jesse on Friday, December 3, 2010 at 10:09pm.
A baseball is released at rest from the top of the washington Monument. It hits the ground after falling for 6.0 s. What was the height from which the ball was dropped? (g=9.8 m/s2 and assume air resistance is negligible)

Physics  bobpursley, Friday, December 3, 2010 at 10:11pm
h=1/2 g t^2

Physics  drwls, Friday, December 3, 2010 at 10:12pm
The distance it falls in time t is
Y = (1/2) g t^2.
That is a formula you need to learn.
Apply it. 
Physics  Love Maltiby, Monday, May 28, 2012 at 9:52pm
y = (1/2)(9.80 m/s2)(6.0s)^2
y = (4.9 m/s2)(36.0s2)
y = 176.4 m