Answer:
35.7m
Explanation:
Given parameters:
Mass of rock = 25kg
Time of fall = 2.7s
Unknown:
Height of the building = ?
Solution:
To solve this problem, we will use one of the motion equations;
S = ut + [tex]\frac{1}{2}[/tex] gt²
S is the height
u is the initial velocity = 0m/s
t is the time
g is the acceleration due to gravity
S = (0 x 2.7) + [tex]\frac{1}{2}[/tex] x 9.8 x 2.7² = 35.7m
