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Andre45 [30]
3 years ago
6

A ball is dropped from the top of a building that is 250 feet tall. The

Mathematics
1 answer:
Virty [35]3 years ago
3 0

hi

-16t²+250 = 75

-16t² = 75 -250

-16t² = -175

  t² = -175 /-16

 t² = 175/16

Here there si two solutions :  t = \sqrt{175/16}   and  t =  - \sqrt{175/16}

However, as time cannot rewind,  we will  keep only positive solution

So t = \sqrt{175/16}

   

in seconds  it will be  :  3.3 seconds

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