Kaitlyn S.

asked • 09/10/18

The formula S=16tsquared is used to approximate the distance​ S, in​ feet, that an object falls freely

The formula S=162  is used to approximate the distance S, in feet, that an object falls freely from rest in t seconds. The height of a building is 1028 feet. How long would it take for an object to fall from the top?

Andrew M.

The acceleration due to gravity of a free falling object is 32 ft/s2 or 9.8 m/s2
 
Your formula should be:  S = 32t2  for feet/sec2 or S = 9.8t2 for meters/sec2
 
32t2 = 1028
t2 = 1028/32
t2 = 32.125
t = √32.125
t ≅ 5.668 seconds
Report

09/11/18

Arturo O.

Andy,
 
s = (1/2)at2 
 
s = 16t2 for a = g= 32 ft/s2
 
s = 4.9t2 for a = g = 9.8 m/s2
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09/11/18

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