document.write( "Question 1149519: At time t=0, in seconds, a pair of sunglasses is dropped from the Eiffel Tower in Paris. At time t, its height in feet above the ground is given by h(t)=−16t2+64.
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Algebra.Com's Answer #770843 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "At t=0,  the value of the given function is  64 --- hence, the height from which the sunglasses were dropped is 64 feet.\r\n" );
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document.write( "It will hit the ground when  h(t) = 0 = -16*t^2 + 64 = 0  ====>\r\n" );
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document.write( "    16t^2 = 64  ====>  t^2 =  = 4  ====>  t =  = 2 seconds.\r\n" );
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