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39 votes
A brick falls from a wall to the ground and it takes 5.67 s to hit the ground. How fandid the brick fall?-27.8 m27.8 m315 m-158 m

User Ilya Tikhonov
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1 Answer

11 votes
11 votes

We would apply one of Newton's formula for calculating motion which is expressed as

h = ut + 1/2gt^2

where

h is the height

u is the initial velocity

g is the acceleration due to gravity.

From the information given,

t = 5.67

u = 0

g = 9.81

Thus,

h = 0^2 + 1/2 x 9.81 x 5.67^2

h = 157.8

The correct option is - 158 m

User Altonymous
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2.7k points