Question #f33b1
1 Answer
Explanation:
Since the body is falling under the influence of gravity (free fall), we can use the following equation to find the velocity at which the body will hit the ground
Where
Plugin and solve (ignored units)

#v = sqrt(2hg)>v = sqrt(2xx80xx9.8)# 
#color(blue)[v = 40 "m"/"s"#
rounded to