Respuesta :
Answer:
The time taken by the brick to hit the ground, t = 0.84 s
Explanation:
Given that,
A brick falls from a height, h = 3.42 m
The initial velocity of the brick is zero.
Since the brick is under free-falling. The time equation of a free-falling body when the displacement is given is
t = [tex]\sqrt{2h/g}[/tex]
where,
h - height from surface in meters
g - acceleration due to gravity
on substituting the values in the above equation,
t = [tex]\sqrt{2X3.14/9.8}[/tex]
= 0.84 s
Hence, time taken by the brick to hit the ground is t = 0.84 s
