Question

A brick falls from a wall to the ground 3.42 m below. How much time will it take to

Answer 1

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 = $\sqrt{2h/g}$

where,

                                 h - height from surface in meters

                                 g - acceleration due to gravity

on substituting the values in the above equation,

                                 t =  $\sqrt{2X3.14/9.8}$

                                   = 0.84 s

Hence, time taken by the brick to hit the ground is t = 0.84 s