document.write( "Question 86768: The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t 2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 5 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.) \n" ); document.write( "

Algebra.Com's Answer #62780 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t 2 , where t is the time the object has been falling. A 6 foot tall man on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 5 story. How long does he have to get out of the way? Round to the nearest tenth. (A story is 12 feet.)
\n" ); document.write( ":
\n" ); document.write( "The distance the bottle falls to strike the man:
\n" ); document.write( "(5*12) - 6 = 54 ft
\n" ); document.write( "s = 54
\n" ); document.write( ":
\n" ); document.write( "-16t^2 + 54 = 0
\n" ); document.write( "-16t^2 = -54
\n" ); document.write( "+16t^2 = + 54
\n" ); document.write( "t^2 = 54/16
\n" ); document.write( "t^2 = 3.375
\n" ); document.write( "t = sqrt(3.375)
\n" ); document.write( "t = 1.8 sec \n" ); document.write( "

\n" );