SOLUTION: Please help me with my homework problem #47: The distance s, in feet, traveled by a body falling freely from rest in t seconds is approximated by s = 16t^2. A pebble is droped i

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Question 30048: Please help me with my homework problem #47: The distance s, in feet, traveled by a body falling freely from rest in t seconds is approximated by s = 16t^2.
A pebble is droped into the well and takes 3 sec to hit the water. How far down is the surface of the water?
Thanking you for your help in advance.
Answer by AnlytcPhil(1807) About Me  (Show Source):
You can put this solution on YOUR website!
Please help me with my homework problem #47: The distance s, in feet, traveled
by a body falling freely from rest in t seconds is approximated by s = 16t^2. 
A pebble is droped into the well and takes 3 sec to hit the water. How far down
is the surface of the water? 
Thanking you for your help in advance

Substitute 3 seconds for the time t in the equation:

s = 16t²

Instead of t write (3)

s = 16(3)²

s = 16(9)

s = 144 feet

Edwin
AnlytcPhil@aol.com