A steel ball drop from a tower strikes in 3 seconds find the velocity when which a ball strikes a ground and a high of a tower???

1 Answer
Feb 18, 2018

I got around #"44.1 m"#.

Explanation:

The distance equation for a falling body from a height in #"m"# and takes #"t"# is given by:

#d=1/2g\t^2#

Here, we have

#t=3 \ "s"#

#:.d=1/2*9.81"m""/s"^2*9 \ "s"^2#

#d=44.145 \ "m"~~44.1 \ "m"#

Source (for the equation):

https://en.wikipedia.org/wiki/Equations_for_a_falling_body