What is the speed of the all falling?

Question

A ball is dropped from the top of a 81-m-high building. What speed does the ball have in falling 3.8 s?
= ? m/s

Answer 1

The acceleration due to gravity is 9.8 m/sec²

 

So after 3.8 seconds, the speed would be 9.8 * 3.8 = 37.2 m/sec